CONTACT INFORMATION Mining Records Curator Arizona Geological Survey 416 W. Congress St., Suite 100 Tucson, Arizona 85701 520-770-3500 http://www.azgs.az.gov [email protected]

The following file is part of the

James Doyle Sell Mining Collection

ACCESS STATEMENT

These digitized collections are accessible for purposes of education and research. We have indicated what we know about copyright and rights of privacy, publicity, or trademark. Due to the nature of archival collections, we are not always able to identify this information. We are eager to hear from any rights owners, so that we may obtain accurate information. Upon request, we will remove material from public view while we address a rights issue.

CONSTRAINTS STATEMENT

The Arizona Geological Survey does not claim to control all rights for all materials in its collection. These rights include, but are not limited to: copyright, privacy rights, and cultural protection rights. The User hereby assumes all responsibility for obtaining any rights to use the material in excess of “fair use.”

The Survey makes no intellectual property claims to the products created by individual authors in the manuscript collections, except when the author deeded those rights to the Survey or when those authors were employed by the State of Arizona and created intellectual products as a function of their official duties. The Survey does maintain property rights to the physical and digital representations of the works.

QUALITY STATEMENT

The Arizona Geological Survey is not responsible for the accuracy of the records, information, or opinions that may be contained in the files. The Survey collects, catalogs, and archives data on mineral properties regardless of its views of the veracity or accuracy of those data.

:-ASA= Exploration Department October 24, 1977 .

FOR : T . C . Osborne

FROM : J . H . Courtright

TUNGSTEN SURVEY

Summary

Historically, tungsten mining has gone through several boom and bust cycles coinciding with periods of war and,peace . However, since 1972 , several sharp price increases have occurred , moving up from around $40 .00 per s .t .u . (domestic quote ) to over $160 .00 in the first quarter of this year . A decline to around $128 .00 took place in the third quarter . Current Metals Week quotation (10-14-77) : $149 .00 .

While inflation is no doubt a factor in the price rise, sharply increased consumption in Asian and European countries may b e principally responsible for the continued end-suppler i a ance, espite U .S .A . stockpile releases . In 1974 China and Russia ' were the l g t producers , with the former having by far the largest reserves . The U . S .A . and Russia were the largest con- sumers .

Although a minor metal, tungsten, by virtue of its unique properties, is of .strategic importance and its future l ooks promising . During high price periods in the past and in recent times, various regions have no doubt been prospected to the saturation point by conventional methods ----- guided, by conventional thinking . It is recommended that our Exploration Department adopt a more aggressive stance in tungsten, using standard techniques, but also putting particular emphasis on the search for geologically permiss'able target areas ----- the approach we have employed with some success in por- phyry copper exploration .

Introduction

Next to carbon, tungsten has the highest melting point (3400°C) of all elements, as well as the highest tensile strength and boiling point of all metals . In specific gravity, it is equal to gold at 19 .3 . Consumption is principally in tungsten carbide, steel and other alloys which have impor .- tant application in the production .of metal working machinery, drill bits, turbines, nuclear and space equipment . Its many uses are basic to a rapidly diversifying technology ; consequently the metal will continue to be an increasingly important, if not critical commodity of worldwide importance

Reserves - Production - Conusmption - Prices .30%,'W03), ~. In 1973 , U .S . reserves amounted to 15 million s .t .u .(cjn ore above or 6 .8% of World reserves, 60% of which are in China . World production

-1- • =s

and consumption (2) both increased around 30% from 1966 through 1974 (in " 106 lbs . tungsten) :

1966 . 1974 Value at $130/s .t .u . World production 63 82 $670,000,000 World consumption 65 86

U .S . stockpile sales filled the gap between supply and demand .

(2) The principal producing countries in 1974 were

Production Reserves "Conditional Resources " (1061bs .W) China 18 .7 2,100 . 4,000 . U .S .S .R . 16 .8 350 .- 700 . U .S .A. 7 .4 238 . 720 . South Korea 5 .1 101 . 175 . North Korea 4 .7 250 . 300 . Bolivia 4 .5 87 . 185 . Thailand 4 .3 40 . 35 . Portugal 3 .3 22 . 65 . Canada 2 .8 476 . 700 . 67 .6

In 1974, China consumed 25% of its production ; Russia about 90%. U .S .A. was the largest user that year (16 million pounds) . European countries, South Korea and Japan were other major consumers . According to Metals Week (9-26-77), in 1976 the Soviets purchased 10,000 metric tons . Assuming it was concentrate, this would amount to over 10 million lbs . of contained tungsten! Thus, Russia became a net importer last year .

The relatively new discovery in Western Canada (Mactung) will likely more than double reserves as well as production for that country .

"Conditional Resources " in the foregoing tabulation are essentially hypo- thetical reserves at grades less than . 30% W03 .

Production by individual countries in 1973 and estimated 1980 capacities are shown on the tabulation (Att .A) . No increase in capacity is projected for the major producers ----- China , Russia , U .S .A . ----- however , the World total increase is estimated at 8% .

0rr the lower part of the chart (Att .B) which shows the domestic price trend • from 1950 to 1974, I have extended the line to the present time . The pattern indicates amore or less steady increase from $35 .00 per s .t .u . in 1972 to $160 .00 'in March 1977, then starting down in August and back up in October,

-2- arriving at $149 .00, the current quotation . Notably, the .fourfold increase over the period 1972-1977 took place despite U .S . stockpile releases and without the stimulus of a major war .

I have been able to turn up only one price forecast, which already has proven ultra conservative : (As of 1974) "the price is expected to remain at $75 to $85 per s .t .u. W03 until 1980-1985., unless the U .S . government sales policy is changed .(~~ices are then expected to increase, reaching $90 to $105 by the year 2000 " . Increased demand and rising production costs are certainly factors in the price rise, as well as developmento)in China, the largest exporter . As stated in the 1974 Minerals Yearbook t , "consump- tion of tungsten in China is likely to expand .... . Since most of the easily attainable deposits are believed to have been worked out, future production will have to come from lower grade and more complex ores ."

Probable average annual demand growth rate (primary) is projected at 4" .3% for the U .S .A. and 2 .7% for the World to thee year 2000 (Att .C) . Secondary (recovery from scrap, etc .) rates are estimated at 6% growth annually .

According to USBM sources (3) the sales policy for excess government stocks is a dominating influence on World prices and production . The U .S . started accumulating tungsten in the early 1950's when Chinese supplies were cut off by the Korean conflict . The program was terminated in 1959 and somewhat' later, disposal at regular intervals was initiated . In 1974, 6 million lbs of W03 were sold and by the end of 1975, the stockpile totalled 116 million lbs . Stated objective : 4 .3 million lbs(3) .

In 1974, U .S . companies received 22%*depletion on domestic production and 14% on foreign . Major U .S . producers : Union Carbide (fully integrated)` and Amax (Climax Mine) . Major Canadian producers : Salmo District, B .C ., and Cantung, Yukon-N .W .T .

Economic Geology

Tungsten is not abundant, ranking 38th in the earth's crust (silver-37th, gold-41st) . Major ore minerals : scheelite (CaW04), wolframite (FeMn W04), huebnerite (Mn W04), ferberite (Fe W04) . Principal associated minerals' : molybdenite, chalcopyrite, cassiterite, fluorite, bismuth minerals . The ore minerals are high in density with specific gravities of 7 to 8 .

Although tungsten has been found in a wide variety of deposit types, includ- ing hot springs (Goloconda, Nevada) and brines (Searles Lake, California), ninety-five percent of production has come from tac titer, veins and stock- works . The attached tabulation (Att .D) shows the major deposit types, minerals and age of host rocks for various countries . In North America,, with the exception of Climax, the largest known deposits are in tactites assoc- iated with Jurassic to early Tertiary quartz monzonite or granitic intrusives, i .e ., Pine Creek , California, Mill City , Nevada, Mactung , N .W .T .

The geographic distribution of 28 tungsten mines or districts of the U .S . and Canada is shown in Att .E, p .341, from a paper on ''Cluster Analysis" . The author concludes that "cluster analysis can be used to establish exploration priority in unknown areas on the basis of similarities to known metallogenetic provinces" . Searching for ore with the computer has been popular with

* Unchanged as of 1977 . -3- statisticians, but most exploration geologists, including myself, regard' it as impractical . Nevertheless, the map provides a birdseye view of the .prin- cipal known tungsten occurrences**, . the majority of which fall in California -Nevada, and in a belt extending from Colorado to north-western Alaska . Incidently, according to the Mining-Journal Ltd ., August 11','1972, p .101 the Lost River, Alaska, fluorite deposit contains only .0037% W03 .

All known deposits in the 48 States (1962) have been coded as to size and located on a map (Att .F) . The accompanying pamphlet lists 363 deposits with . brief notes as to type of occurrence . Of the total, 260 are in tactites . The reference list may be used to obtain more information on specific occur- rences .

No comparable compilation for Canadian deposits was found in the literature . However, considerable information on mines and prospects in the Yukon was published in 1969 . Wolframite occurs in quartz veins, but the principal deposits are present as scheelite in skarns which formed in lower Paleozoic rocks near Mesozoic intrusions . Thirty-one occurrences are described by the author, Cathro, the locations of which are indicated on a map (Att .G, p .28) .

Notes on Major Mines or Districts .S :A . U and Canada

Bishop District, California (4)

Production 1916-1965

Tons Ore Units W03 Lbs .Mo Lbs .Cu 6,580,000 3,451,000 17,000,000 19,500,000 .

Pine Creek (Union Carbide)

Largest of 16 mines in Bishop District . Ore bodies in marble pendant on quartz monz . (+ m .y .) Scheelite, moly, cpy in tactite masses measuring up to 1000' x 200' x 50' . 1974 production : +2000 tpd - (5) Assuming 80% recovery of .40% W03 heads, this would amount to around 3 million lbs . W per year .

Climax

Tungsten occurs as huebnerite , principally as haloes overlying moly zones (inverted cup shape ) . Grades average up to . 10 W03 , but the moly ore as mined averages . 03% W03(6) . Mill recovery is 20-24% amounting to 2 .5 million lbs . 70% W03 concentrate ( 7), ore 1 .4 million lbs . W per year ----- a gross value of $1 .00/ ton or $15 million /year at $120 .00 per s .t .u .

** Location of Cantung ("MacKen") inaccurate ; see map, Att .E

-4- Mill City

Scheelite in tactite "beds" (in Triassic limestones cut by granodiorite) 1' to 25' thick . Mined to 1400' depth .' Average grade : .80% W03 . Production to 1964, 1 .5 million s .t .u . W03(8) . Shut down several years . Plans to start open pit and 400 tpd mill in 1976 announced(9) .

Atolia District, California (10)

Numerous small but highgrade shoots of scheelite were mined from quartz- carbonate veins (Miocene?) cutting quartz monzonite (Jurassic) . Production (to 1940) : 13 million lbs . W . 6% of this derived from placers . Being worked mainly by lessees in 1954(11)' .

Boulder D istrict, Colorado

Ferberite with minor scheelite in chalcedonic quartz veins in PreCambrian granite and metamorphics scattered over'200 miles . Small but rich shoots (+2000 tons) range from 5% to 20% W03 . Production plus reserves : over .. 20 million lbs . W (Att .F, p .9) .

Tempiute, Nevada

Scheelite in tactite . Wah Chang operated for several years, 700 tpd .37% • W03, 70% recovery . According to published data(12) Union Carbide will open in '77 at 1000 tpd, + .30% W03 . Reserves : 7 million tons of ore .

Hamme District, N .Carolina

Huebnerite in quartz veins cutting granite and schist . Mine reopened as Tungsten Queen by Ranchers Exploration(2) at 600 tpd, .40 - .50% W03 . Pro- duction 1971 : 95,000 s .t .u., or 1 .5 million lbs . W .

Salmo, B .C . (near Nelson)

At the Emerson and two other mines scheelite occurs in extensive tactite "beds" (up to 30' thick) near a granitic intrusive(13) . Production 1942 through 1958 (shut down) : 1,100,000 tons .98% W03 . Mill recovery : 85% (Att .G) .

Cantung Mine, N .W .T .

Scheelite with minor copper occurs in tactite within Lower Cambrian lime- stone , near outcrops of biotite granite . Mill 600 tpd 1 .65% W03, 82% mill recovery . 1976 production : 2,500,000 lbs . W . Reserves : 4 .3 million tons 1 .63% W03 . Discovered as a low grade copper occurrence in 1954 by a Kennecott • subsidiary (Northwestern Exploration Ltd .) and dropped in 1968 . Subsequent- ly, scheelite was recognized by geologists of the Mackenzie Syndicate (in- cluding Amax) . By 1962, over one million tons of open pit ore grading 2 .47%

-5- W03 and .45% Cu had been demonstrated (Att .G) .

Mactung . Yukon - N .W .T .

Discovered by Amax 1962, drilling in 1968, 1970 and 1972 . Underground development-and drilling in 1973 . Reserves : 30 million tons .90% W03 . Scheelite with cpy, po, moly occurs in tactite developed in 5 separate'` limey horizons of lower Paleozoic age near margins of Cretaceous stock .' Mineralization extends 3000' along strike and 1000' down dip from intrusive contact (Att .G) .

Glacier Gulch, B .C . (Amax)

Small, but recoverable amounts of scheelite occur in this porphyry molt'' deposit . Reserves : 100 million.29%.- tons MoS2 .

Burnt Hill, N .B .

Wolframite quartz vein deposit . Reserves : 1 .5 million tons .75 - 1 .00% W03 .

Sullivan Mining - Billiton,'N .B . .

Feasibility studies in pro ress on deposit containing 7 .1 million tons .39% 0 W03, .22% MoS2 , .11% Bi(14) .

Mittersill, Austrian Alps

Scheelite disseminated in Paleozoic metasediments (quartzite-chlorite schists) . According to the Metal Bulletin Monthly, June '77, open cut mining in pro- gress at a 250,000 tpy rate, 1 .00% W03 . Reserves, including underground ore, 2 .5 million tons at .80% W03 . Rodney Sprague visited this unusual occurrence shortly after its discovery in outcrop . No evidence of mineralization of any kind visible in ore specimens, except under the "lamp" . Anomalous amounts of tungsten reportedly occur in the same sedimentary horizon over a consider- able distance (+100 km?) .

Metallurgy

Various milling methods are used for concentration, including gravity,`flot- ation, magnetic separation, and a combination of these methods, to produce concentrates that contain 50 to 70% W03 . Slimes are usually processed,-chem- ically to produce synthetic scheelite containing 70-72% W03 . For scheelite, 65% recovery is considered fair ; 80%, good . For wolframite, 70% fair and 80%, good(15) . In recent times (since 1959) recoveries have been improved on some ores . 0

-6- Conclusions and Recommendations

Although tungsten ranks far below the base metals in volume consumed, in- creased demand and surging prices have created a situation where the return on a modest sized operation can approach that of a large plant producing some of the more abundant elements . The cost of shipping concentrates (per lb . of W) even from remote locations, is negligible due to their high value at current prices ($7 .00/lb . W03, or $9100/ton of 65% con .) .

From the exploration standpoint, many deposits grading one percent, or better have escaped detection for many years even in well prospected areas . As noted in the foregoing, Cantung was drilled and dropped because of the low grade of the copper (cpy) mineralization . Sal Anzalone reports that geologists from another company found extra heavy sections of drill core which turned out to be highgrade scheelite . The Fox Lake skarn-scheelite deposit with intermittant gossan exposures extending over 31 mile lies in a well travelled area only 6 miles from a highway and 30 miles from the Ross River, remained undiscovered until 1968 (Att .G) . There are numerous other examples . Scheelite is almost impossible to distinguish visibly from common carbonates and rock forming silicates, but it fluoresces with a character- istic bluish-white color under ultra-violet-light . Under present prices, deposits containing .2 - .3% W03 ----- possibly ore ----- could more readily be overlooked, especially if the tungsten was present as the non-fluorescent iron or manganese tungstates .

Although many deposits have been discovered by panning, scheelite is very friable and is converted to slime not far from the source by erosional pro- cesses . Lloyd James has provided a short paper (Att .H) wherein it is noted that tungsten forms soil anomaly "haloes" by movement in solution . Much more information on tungsten geochemistry is needed .

As is true of base and precious metals, there are myriads of occurrences but relatively few known deposits of commercial importance, at least in the U .S . and Canada . However, the future of this element appears bright and dis- covery possibilities sufficiently attractive to warrant Asarco undertaking at least a modest sized effort, particularly in search of geologically permissive targets . Although much smaller than porphyry copper deposits, some of the tactite occurrences are large enough to "hit" in fairly wide- spaced drilling through cover, or otherwise . California and Nevada have been rather thoroughly prospected over the years, but still may hold some potential ; however, the more heavily vegetated, soil and glacial debris covered terrains of the northwest U .S ., Western Canada and Alaska, appear to offer the best exploration potential in North America .

Samples from sizeable deposits should be routinely checked with the ultra- violet light as well as by spectroscopic or chemical analyses, bearing in mind that copper and moly are very common associates . The first 7 holes at Little Boulder Creek averaged .007% W03 . A tactite specimen selected from Mission by Sal Anzalone contained .027% W03, but tailings samples from' ;_both Mission and Silver Bell contained less than .01% W03 . We have no assay . data on Sacaton, Minto or Ox Lake . As reported by Emmons in 1927 (AHF,p .9)` wol- framite and scheelite occur in the pyritic gold ores of Breece Hill, Leadville ' Colorado .

J . H . Courtright

-7- JHC :jlh c .c . T .C .Osborne (2) S .A.Anzalone W .L .Kurtz F .T .Graybeal J .C .Balla D .P .Cadwell L .D .James S .VonFay J .V .Desvaux R .E .Gale R .S .Gray J .H .G .Fuchter R .B .Sprague H .C .Williamson J .J .Merz

0

-8- y ':

ATTACHMENTS

A USBM Preprint from Bulletin 667, 1975, p .2 .

B ...... average price of tungsten (W03), USBM Yearbook, 1974, Vol .1, p .1310 .

C Demand forecast, USBM•Preprint from Bulletin 667, 1975, p .13 .

D Geology and reserves of principal tungsten deposits of the world, U .S . mineral resources, USGS PP .820, 1973, p .676 .

E Collyer, P . L ., "Cluster Analysis Used as an Exploration Tool in the Minerals Industry," AIME Transactions, Vol .258, 1975 . 0 *F Lemmon, D . M ., and Tweto, 0 . L ., "Tungsten in the United States (Exclusive of Alaska and Hawaii)," USGS Mineral Investigations Resource Map MR-25, 1962 .

G Cathro, R . J ., Tungsten in Yukon, Western Miner, April 1969 .

H Springer-Verlag, Behavior (Tungsten) During Weathering and Rock Alteration , from Handbook of Geochemistry, 1969 .

CC. ` a-- ~ ~ led 'b t, E c1 wa,r c( N c ~+6

of included . USGS mailing delayed . eOne copy in / WED Library, Tucson .

-9- REFERENCES S

(1) Hobbs, S . W ., and Elliot, J . E ., 1973, U .S . Mineral Resources, Professional Paper 820, p .667, 668 .

(2) U.S . Bureau of Mines Yearbook, 1970, 1971, 1974, Vol .I .

(3) Tungsten. USBM Preprint from Bulletin 667, 1975 .

(4) Ore Deposits in the United States 1933-1967, Graton-Sales, Vol .2 . '

(5) World Mining, June 1976 .

(6) USBM I .C .8500, 1971, "Availability of tungsten at various prices from resources in the U .S .", p .5 .

(7) Metals Week, March 14, 1977 .

(8) Mineral Resources of Nevada, Bulletin 65, 1964 . i (9) EM/J Directory, 1976 .

(10) Lemon, D . M ., and Dorr, J . V . N., Tungsten deposits of the Atolia District, California, USGS Bulletin 922-H, 1940 .

(11) Geology of Southern California, Bulletin 170, 1954.

(12) Nevada Mining Association Newsletter, 7-15-77 .

(13) Canadian Mining and Metallurgical Bulletin, August, 1953 .

(14) EM/J Mining Activity Digest, 10-7-77, p .18 .

(15) USBM Circular 7912, 1959 . : 4-

of ttlit liar fist dei' arc Ala of j, of fill( stat thrc org: Coy disc tog,[

illus spec ecor pros indt* tulle -G

En,

AL, King Pubt for iI Pert'

40 1978 June WORLD MINING 68 WESTERN MINER April 1978 rt ~ x tt . 999 ~

6, -\, +-., zT- 4 c

J^n

Q CANADA'S ONAL MINING NEWSPAPER APRIL 6, 1978 VOL . 64 NO . 4

FOUNIJED 1915 # is i V Capacity Company. Location Project Planned Now Units Investment Start Class Notes

ASIA AND JAPAN Chowgule/NipponKokan Mt. Babadudan, India mI/pI 6MM tpy ore $SO0MM C Dependent on further Japanese backing. Kudremukh Iron Ore Karnataka, India mi/co 7.5MM mtpy conc. $630MM 1981 A Iran to finance. Mandovi Pellets Shiroda , India pp 1 .6MM mtpy pellets 1978 A Output for export to Japan . NMDC ' Bailadila/VisakhaDatnam, India pp 2MM mtpy pellets $80MM C J AN 2 5 NMGC Madhya Pradesh , India mi/pp 13MM 4MM mtpy ore $333MM 1979 B Two pellet plants . 19780 Nat . Iranian Steel Ind . Ahvaz, Iran PI 2.5MM tpy sponge $573MM 1978 A Cost for 3 plants. NISI Goligohar. Iran mi/co 5MM mtpy conc. $ 160MM 1980 AS OR more than 200MM mt. Granges to operate. USSR Oskol, USSR pp 4MM tpy pellets 1980 A Part of Kursk Magnetic anomaly.

AUSTRALIA AND OCEANIA Cliffs Western Mining Robe River , W . Australia mi 9.2MM 4.2MM tpy pellets $A2o0MM BC Will also export 6 .1MM tpy of iron sinter fines . Goldsworthy Mining Area C, W. Australia milpp 18MM mtpy ore SA600MM 1978 BC Dependent on Japanese financing. Hamersley Iron Mt. Tom Price, W. Australia pi 7MM tpy conc . $ 250MM 1979 A Hamersley's first beneficiation pl in Pilbara region . Hanwright-Texasgulf Marandoo , W. Australia OP 16MM mtpy ore $A600MM 1980 BC Seeking financing . Hanwright-Texasgulf Rhodes Ridge, W . Aust. mi/pl 10MM tpy ore $A300MM C Mt, Newman Consortium Mt. Whaleback , Australia PI 5-7MM mtpy ore $125MM B Surlgao Consul . Midsalip, Philippines PI Fe conc . A Pig iron project on site.

Other Ferrous Metals CHROMIUM

Acoje Mining Co . Philippines co 1.2M 800 mtpd ore A British Chrome Chemicals Stockton-on-Tees, England PI 16M 6M mtpy oxide 1978 A Two-phase expansion program. Etibank Genet. Mudurlugu Elazig, Turkey PI 25M tpy Cr $ 50MM A Also 75M tpy FeCr . Mitsubishi to provide tech . assistance. Ferklock SA Brazil ml A JV of Ferbasa SA and Kloeckner & Co. Indian Govt. Orissa, India PI 50M mtpy FeCr $ 13-15MMM C JV of Federal and Provincial governments. Ingessana Hills Mines Ingessana, Sudan mi 50M 25M tpy ore $40MM 1980 A JV with Mitsubishi and Japan Metals & Chemicals Co . Malagasy Gov't. Nord Andriamena, Malagasy mi 300M tpy ore $ 12MM 1979 AB JV with France and Japan . ID Middelburg Steel & Alloys South Africa pi 40M mtpy FeCr 1978 A Mysore Minerals Byrapore, India p1 500 mtpm chrome $1 .1MM B Japanese collaboration . Mysore Minerals Karnataka, India pi 6MM tpy ore $3 .5MM B To convert low grade ore. Rand Mines/Trvl. Consol . Transvaal, South Africa mi 2MM mtpy ore 1980 A Overall expansion of 3 mines : Winterveld , Chrome Mines Lands Ltd ., Milsell. Samancor Mooinooi, Trvl ., So . Africa ml 20M tpm ore ¢1OMM 1979 A Ore to be processed at Witbank pl. Samancor Witbank, So. Africa pp 200M tpypellets $15MM 1978 AS Will utilize Japanese technology. Sudanese Gov't. Ingessena , Sudan not 230M tpy ore $40MM 1980 BC JV with Japanese firms .

MANGANESE Anglo American Corp. Kuruman, So. Africa UG 1MM tpy prod. $46.8MM 1979 A Deposits in Middelplaats area grading 38% Mn . Comilog Moanda, Gabon pt 135M tpy FeMn 1981 A Also 5OM tpy SiMe. Cia. Miners Autlan Tamoa, Mexico mi/pl 20DM 50M tpy FeCr 1985 C Deep Ocean Mining Niihama, Japan pt 3M ant nodules B Test pi. Inco to process . Uni-Ferro Int. Temsar, India p1 45M mipy FeMn/ $ 12.5MM B Phibro Asia holds45% interest. SiMn Upper Volta Tamboa . Upper Volta art 625M tpy ore $94MM 1980 A $70MM for rail link. OR 10MM 156 .2% Mn .

---~ MOLYBDENUM Brynnor/Noranda Boss Mtn. . B.C., Canada OP 20M tpd ore B Cia . Minera Ardina Antofagasta, Chile PI 10MM Ibpy conc . $27MM B Elec.- Metal./Piacer Devei. Copaquire, No . Chile ml $200MM C Decision on development expected within a year . Molycorp, Inc. Questa, NM, US UG 26M tpd ore C Feasibility study underway. US Borax & Chem . Corp . Ketchikan area, AK, US OP 30M tpd ore $250MM B OR 100MM I . Development would take 5-10 years .

SILICON ElkemSplgerverkert Akranes, Iceland pi 50M ipy FeSI 1978 B Owned 55% by Icelandic Govt. Orkla Industries A .S. Thamshavin, Norway pi 38M tpy FeSI 1979 A Venbozel Orinoco . Venezuela PI tpy FeSI 1979 A Project Involves construction of three 52 mva furnaces .

TUNGSTEN Argentine Gov't . La Toma, Argentina pi tpy W P8MM B Now concentrating pl . Canadian Tungsten Tungsten, NWT, Canada milco 900 500 tpd ore $10MM 1979 A OR for 14 yr, life-span. SNAP Lake Titicaca, Bolivia co 250 tpy conc . $ 1 .8MM 1978 A Skoda Export from USSR to provide financialttechnical assistance .

E/MJ MINING ACTIVITY DIGEST JANUARY 6, 1978 9 .'ali51].^x.maLii+, ++. LUC31' A .GdrYM1 '.r'^`^ a'3~tis1:•~.Si BfIL'«. ~~' spa ~. oG'rsbattw: " ~'~ti9'a.5..H6 da'a . t1Z""' ~ _ wjs..+ . w~ ti~' tiyt sw~r~A~yyyve:.~ w

Capacity - Company Location Project Planned Now units Investment Stud class "ales

Estalsa Chojila, Bolivia mil 1 .5M 1M tpdore A Oregrading 0 .35%Snand0.35%Woo.., Estalsa Enramada, Bolivia miko 600 200 tpd ore 1979 A Interim expansion to 300 tpd ore. Hemerdon Mng. & Smelt. (UK) Ltd. Plymouth, England OP 10M mtpd ore BC OR 10MM ml averaging 3-5 lbpmt of metal . Intubol Viacha, Bolivia PI 41M mtpy W pwdr. $5 .2MM 1979 A Also 2M mtpy ammonium paratungstate . 51% held by ENAF. Oxbow Resources Tennessee Mtn., NV, US ml 500 200 tpd ore A OR 396M st grading 0.42% W . Poke Mines King I., Tasmania, Aust. pi 400M 300M mtpy ore BC Also considering pl to extract Mo. Sullivan Mining/Billiton NB., Canada mi C Metallurgical treatment problems have held up development.

VANADIUM Earth Sciences Idaho, US not C OR of 15 to 25MM tof 1.35% vanadium pentoxide. Ferrovanadium Corp . Barrambie, W. Australia OP 1 .5MM Itpy ore $A150MM B OR 37MM 10.5% vanadium pentoxide~t 0 .3% cut off .

Nickel NORTH AND CENTRAL AMERICA

Copperfields Mining Monicalm, Cue., Canada mi C Feasibility studies to get underway . OR 4MM t,1 .44%Ni . 0.68% Cu .

SOUTH AMERICA AND CARIBBEAN Baminco Mineracao Barro Alto, Brazil milsm 50MM lbpyFeNi $200MM C CVRD Piaui, Brazil mitre 6M tpyNi $100MM B OR20MMt grad. 1 .7%Ni . Cia . Niquel Tocantins Niquelandia , Brazil mi/pl 5M tpy NJ $170MM 1978 AB Econiquet Cerra Matoso, Colombia mipl 42MM lbpy FeNi ' $300MM C JV with Hanna and Chevron . Financing questionable . Cubaniquel Moa Bay, Cuba pi 24M 18M mipy NJ 1980 BC Part of overall plan to increase production to 90M mtpy by 1985 . Cubaniquel Punta Gorda, Cuba PI 30M mtpy Ni-Co 1983 BC Also second pl with equal capacity by1985.6.

EUROPE Le Nickel, SA Le Havre, France re 15M tpy NJ 1978 A Eleusis Bauxite Euboea Is ., Greece mi/co 40M Spy FeNi conc. $65MM AB Pilot pl In operation . Larco Larymna, Greece mi/pl 77MM 33MM lbpy NJ $50MM AB OR : Euboea 600MM 1 .2% NJ, Ilagios Joannis 110MM L Feni-Ruduici Kavadarci , Yugoslavia mi/pl 64M mtpyFeNi $187MM 1979 A Rekmk Kosovo Kosovo Prov., Yugoslavia mism 1MM tpy are $128MM 1980 A Soviet-Polish financing. Sin at Glogovac to produce 53.8M tpy FeNi, 12.1 M tpy NJ and Co.

ASIA AND JAPAN NDC/Nittetsu Sukinda, Orissa, India mi/sm 4.8M mtpyNi $55MM 1980 A Also 200tpyCo. Shimura Kako Date, Hokkaido, Japan re 1GM tpy NJ 1978 A Also iM tpy NJ sulphate.

AUSTRALIA AND OCEANIA Agnew Mining Co. Agnew, W. Australia cx 1GM ipy NJ conc . SA105MM 1979 A Mine development begun. JV of Western Selcast, MINI Hldgs . Amax/Endeavor Oil Forrestania, W . Australia OP NJ $A40150MM 1980 B Amax to manage . Western Mining Kalgoorlie, W. Australia sin 100M toy NJ conc. $ 37 .5MM B Will handle Agnew output. Indonesian Nickel Develop . Co. Gebe 1.. Indonesia mi/sm 26M spy FeNi $500MM 1980 AB JV with Japan . Later expansion to 10QM toy. PT Pacific Nikkei Indonesia Gag 1 ., Indonesia milpl 100M lbpy NJ SIB 1980s AB Consortium involving US Steel, Hoogovens, Amoco Mnrls . Amax1BRGM New Caledonia mi/pi FeNi $620MM B France to own 51%. Coiremmi/Patino Sommeni, New Caledonia mUpI 18M pdpyFeNi $ 150MM 8 Le Nickel Doniambo, New Caledonia sin 100M 85M- ibpy NJ $200MM 1981 A Investment includes mi expansion . Le Nickel Kouaoua, New Caledonia mi 1 .2MM 600M toy ore 1981 A Part of Doniambo sin expansion project. Le Nickel Nepoui, New Caledonia ml 2MM tpy ore 1981 A Part of Doniambo sin expansion project. New Zealand Nickel Smelt. Ltd . Greymouth , New Zealand sin NJ , S120MM BC 0 Light Metals Consol. Rutite N. Stradbroke Is ., Aust. mi rutile S14MM AB Switching to dredging.` Mineral Deposits Ltd. Agnes Water, Onsid., Aust. mi/pl 120M tpyllmenite $A14MM D

10 JANUARY 6, 1978 E/MJ MINING ACTIVITY DIGEST 26

toft

/Z~y-77 s it-t4- 77 FnoM: J. H. CovnTRIGUT

To: .J

t

0-%0% I;r_u ds CT C.

a

r ASARCO Exploration Department

November 16, 1977 .

MEMO FOR: T . C. Osborne

FROM: J. H. Courtright

TUNGSTEN SURVEY

Enclosed are USGS publications, forwarded by Mr . Balla, which should be inserted as at tachments to "Tungsten Survey", 10-24-77, sent out from this office last month :

Att .F Lemmon, D .M., and Tweto, 0 . L ., "Tungsten in the United States (Exclusive of Alaska and Hawaii)", USGS Mineral Investigations Resource Map MR-25, 1962 .

Att .I Cobb, E . H ., "Tungsten Occurrences in Alaska", Mineral Investigations Resources Map MR-66, 1975 .

J . H . Courtright .

JHC : jlh ' encls c .c . W .L .Kurtz F .T.Graybeal J.C .Balla P.S . Also enclosed is a page from USBM D.F .Cadwell Mining Annual Review which just S .VonFay arrived in the mail .. Of note is . .J.V.Desvaux the implication that Chinese tungsten R .E .Gale exports may be cut 50% in 1977 . R .S .Gray file ~- Attachment E

340-DECEMBER 1975 Soci ety of Mining Engineers, AIMS TRANSACTIONS`-VOL, 255 Attachment G

By ROBERT J. CATHRO, P.Eng. Archer, Cothro & Associates, Ltd. Consulting Engineers 30 WESTERN MINER APRIL, 1969 38 WESTERN MINER APRIL, .1969 i e 4 Tungsten (Wolfram) 74-G-2 DEPARTMENT OF THE INTERIOR TO ACCOMPANY MAP MR-25 UNITED STATES GEOLOGICAL SURVEY

TUNGSTEN IN THE UNITED STATES

(Exclusive of Alaska and Hawaii)

By D . M . Lemmon and 0 . L . Tweto

Introduction mentary rocks , and in stockworks , pegmatites, and residual placer deposits . Many deposits of t~ungsten- The accompanying map shows the tungsten de- bearing manganese oxides of hydrothermy4I origin posits of the United States (exclusive of Alaska and are known, and one at Golconda, Nev ., was worked Hawaii) . The relative importance of the deposits, commercially . The brines of Searles Lake, Calif ., groups, or districts is shown by four symbols, contain a large quantity of tungsten in very low indicating tungsten contents of: (1) greater than concentration -- 0.005 to 0.008 percent of W03; as yet 10,000 short tons of tungsten metal, (2) 10,000 to no commercial method of extraction has been devised . 500 tons, (3) 500 to 10 tons, and (4) less than 10 tons . In assigning size, production plus estimated reserves Of the six tungsten, districts of major rank were taken into account, and also, for some deposits shown on the map, three are vein deposits , two are or areas, the presence of tungsten in large quantity but contact metamorphic deposits, and one is a stockwork . very low concentration . Of the 23 districts or mines of the next lower rank, 6 are vein deposits , 12 are contact metamorphic The map symbols, plotted to. the nearest minute, deposits , 2 are replacement deposits, 2 are stockworks, make no distinction between individual deposits and and 1 is a deposit of tungsten -bearing manganese groups of deposits or districts ; about 590 map oxides . The largest placer deposit worked in the symbols represent several times this number of United States was at Atolia, Calif ., but it was far less deposits because many symbols stand for clusters'of productive than the scheelite -bearing veins there. deposits spaced too closely to show individually at the Smaller placer deposits containing either scheelite scale used . All localities are numbered consecutively or wolframite have been worked in many areas, but in each state and are identified in the Locality Index . in general , placers have been only minor sources of Unpublished information has been used extensively . tungsten, as the tungsten minerals are friable and The tungsten data for Colorado, Idaho, Montana, New become widely dispersed in stream deposits . Mexico, South Dakota, Texas, Utah, and Wyoming were compiled by Tweto, and those for the remaining Most of the tungsten deposits of the United States states by Lemmon. are related to intrusive igneous bodies of Cretaceous or early Tertiary age. Almost all the deposits of Geology California , Idaho, and Montana appear to be related, respectively , to the Sierra Nevada, Idaho, and Boulder The commercially important tungsten minerals batholiths , or to be of about the age of the batholiths . are those of the wolframite group --ferberite, FeW04, Most of the important deposits of Nevada , and also wolframite, (Fe,Mn) W04, and huebnerite, MnW04-- many in Utah, Arizona, and New Mexico , are related and scheelite, CaW04 . Although the wolframite group to smaller intrusive bodies of Late Cretaceous or is economically more important in the world as a early Tertiary age . The principal deposits of Colorado whole, scheelite is more important in the United are elements of the Colorado Mineral Belt , of early States and has accounted for nearly three-fourths of Tertiary age, although some of their tungsten may the domestic output . have been derived from Precambrian deposits, as Tungsten minerals are the only product recovered suggested by Tweto (1960 ). Scattered deposits of from many of the United States deposits . Complex ores other associations and ages exist in the United containing other marketable minerals such as moly- States . The richly productive Hamme deposit, North bdenite, gold, or stibnite are found in a few deposits . Carolina , is probably of Paleozoic age . Minor de- A few tungsten ores yield gold, silver, copper, lead, posits of Precambrian age occur in Wyoming, Ariz- or zinc as minor by-products, and conversely, some ona, Texas , and South Dakota as well as in Colorado . deposits of these metals yield tungsten as a by- Scattered deposits related to intrusive rocks of product. Tungsten is associated with beryllium min- middle or late Tertiary age occur in several western erals in some ores, and deposits may be found that states, as do hot -spring, lacustrine , and placer de- are workable for both metals . Small quantities of posits of Quaternary age . nonmetallic minerals such as garnet and fluorite Most of the tungsten produced in the United have been marketed from a few tungsten deposits . States has come from a small number of `mines or In the United States, tungsten occurs principally districts , although many individual occurrences of in quartz veins that contain minerals of the wolfra- tungsten are known . Of the 97,305 short tons of mite group, scheelite, or both, and in contact metamo- tungsten produced from 1900 through 1957,, all but rphic deposits containing scheelite . It occurs also in a small fraction came from the 29 deposits of first hydrothermal replacement bodies in igneous or sedi- and second rank . The five states of California, Introduction (cont"d .) Locality index (cont'd .y Nevada, Colorado , Idaho , and North Carolina pro- ARIZONA (cont'd . ;i vided 93 .9 percent of the total ; and Arizona and 13 . Telluride Chief . Small masses of 35°U9' 113°37' Montana, 4 .39 percent (U . S . Bureau of Mines, 195') . wolframite and scheelite 'inqua- rtz veins formerly worked for Locality Index gold, silver, and molybdenite . Lat . N . Long. L4'. 14 . Dutch Flat (Kampf ) . Scheelite 34°33' 114°10' ARIZONA and a little wolframite in nar- row veins worked for gold and t 1. Boriana mine . Wolframite, sche- 34°i7" 113°55' silver . elite, and chalcopyrite in narrow quartz veins in phyllite . Hobbs, 13, Greenwood region, L3'olframite 34°32' 113°'31' 1944 ; Wilson, 1941 . and scheelite in 2 narrow quartz veins in granodiorite . 2 . Aquarius Range . Huebnerite in a 34°4"' 113°26' quartz vein 2 to 24 inches wide. l6, Zannaropolis . Scheelite in len- 34"29' 113°16' Hobbs, 1944 ; Wilson, 1941 . ses of epidote-diopside rock in schist . 3. Black Pearl mine . Wolframite in 34°41' 113°02' a 3-foot quartz vein . Anderson 17 . Warrior . Ferberite in quartz 34°l- 112°50' and others , 1955 ; Wilson, 1941 . vein 1 to :~, inches wide in granodiorite . 3a. Tungstona mine . Wolframiteand 34°38' 113°09' beryl in thin , close-spaced qua- 18 . Blade . Wolframite and scheelite 34°09' 112'°16' rtz veins . Anderson and others, in shear I to 5 feet within 1955 . quartz monzonite with schist inclusions . 4 . Campo Bonito district . Scheelite 32°3 .3' 110°44' in silicified limestone breccia in 19 . C and W, WWolframite and sche- 34°05' 112°27' fault zone between granite and elite in lenticular quartz 1 to 2 limestone. Wilson, 1941 . inches wide in schist .

5 . Little Dragoon Mountains (Pri- 32°04' 110°0 5' 20 . Black Butte (Castle Creek), Vein 34°'03' 112°25' mos). Huebnerite in narrow qua- 1 .5 to 2 .0 feet wide in andesite rtz veins in granite . Wilson, 1941 . contains psilomelane and pyro- lusite that assays about 1 per- 6 . Huachuca Mountains (Tungsten 31°26' 110°17' cent of W03 . Reef mine) . Scheelite in irregu- lar ore shoots in a gently dipping 21 . Tip Top . Accessory wolframite 34°03' 112°15' quartz vein 1 to 1 feet thick . in a quartz vein minedforsilver Other veins in range have been and gold . worked intermittently with small 22, White Picacho district . (Climax, 33° .59' 112°32' production . Wilson, 1941 . Scheelite Reef, Buena Vista pro- 7. Las Guijas district . Huebnerite in 31'°39' 111°22' perties) . Scheelite disseminated quartz veins in granite, Wilson, in lenticular calcareous layers 1941 . in hornblende-biotite schist, 8. Big Bend. Scheelite, quartz, and 36°49' 113'°52' 23 . Gold Cliff . Ferberite, locally 33° ;5' 111°56' silicates in Precambrian gneiss with auriferous pyrite, chal- and schist . Pod 1 .5 by 10 feet . copyrite, fluorite, and minor molybdenite, in quartz veins in 8a. Lime Liln Canyon. Scheelite 36°40' 114°01' granite . pods in Precambrian schist and gneiss . 24 . Rosr Tungsten (Shoestring( . 34°O1' 111°03' . Wolf .a,mite, a little scheelite, 3,5'49' 11 .4°1'3' 9. OK claim . A little wolframite with tourmaline, hematite, and minor gold, limonite, siderite, galena, calcite, in two .4-inch quartz and molybdenite in 1 .5 foot quartz veins in diorite porphyry, Wil- vein in granite . Schrader, 1909 . son, 1941 . r 10. Garnet Mountain . Coarse sche- 35°48' 114°03' 25 . Jackpot and Velma (Quartzite 33'°4' 114°19' elite in tactite inclusion ingran- claims) . Large crystalsofsche- ite . elite irregularly distributed in r 11 . Zonell . Lenticular tactite layers 3 5 °22' 113°28' idocrase rock in schist . in schist . 26 . Nighthawk, Colorado, and White 33°34' 114°05' 12 . Three-in-one . Wolframite and 3 5°07' 113°52' Dike . Scheelite in short quartz scheelite in quartz veins 1 to veins in schist . 18 inches wide . 27 . Gold Reef. Quartz vein 1 to 24 33°0,3' 114'°31' Locality Index (cont'd.) ARIZONA (cont'd.) ARIZONA (cont'd .) eelite in 2 limey lenses in qua- rtzite . Geesman (Control) mine . inches thick contains scattered Scheelite in tactite, in contact particles of scheelite, limonite, zone than contains copper ore and hematite . bodies . 28. Jolene and El Oso properties, 33°46' 111°22' 40a . Bush claim . Tungsten-bearing 32°27' 109°43' Mazatzal Mountains . Scheelite Hewett elanand d vein ; in and wolframite in steep quartz HewettFleischer, , 1960 . veins in granite . 40b. Thurston-Hardy . Tungsten-be- 32°47'' 109°15' 28,a. Armer Wash. Tungsten-bear- 33°45' 111°02' aring manganese oxide min- ing psilomelane vein ; in Apache eral ; in Tertiary basalt . He- group . Hewett and Fleischer, and Fleischer, 1960 . 1960 .. 40c . Fourth of July . Tungsten-bear- 32°51'!` 109°07' 33°36' 111°00' 29. Wagner . Wolframite and sche- ing manganese oxide mineral ; elite in veins in granite, in Tertiary andesite . Hewett 30. Summit . Wolframite in quartz 33°22' 110°58' and Fleischer, 1960 . veins several inches thick and 40d . Lucky . Tungsten-bearing psi- 32°54' 109°06' and 12 feet or less long in lomelane vein; in Tertiary and- granite . esite . Hewett and Fleischer, 31 . Falcon . Woiframite and a little 33°22' 110°51' 1960 . scheelite in quartz vein in gran- 41 . Republic Copper mine (Johnson) . 32°07" 110°05' ite . Small amounts of scheelite and 32 . Samsel, Westlake, and Bobtail 33°16' 110°52' molybdenite in garnet tactite mines . Wolframite in narrow extensively exploited for copper quartz veins in Pinal schist. and silver . 32a . Almino. Tungsten-bearing psi- 33°07' 110°56' 42. Circle . Scattered bunches of 31°44'' 111°36' lomelane vein ; in Gila conglo- wolframite, sparse scheelite, merate . Hewett and Fleischer, and some pyrite in quartz vein 1960 . 6 to 18 inches wide . Wilson, 1941 . 32b. Cochise . Tungsten-bearingps- 33°07' 110°53' ilomelane vein ; in Gila conglo- 43 . Black Gold. Wolframite and tra- 31°43, 111°24' merate . Hewett and Fleischer, ce of scheelite in narrow quartz 1960. vein in andesite . 33 . Sunset Limited (Yellow Aster) . 32°15' 112°42' 44. Senator Morgan . Scheelite in 31°54'' 111°04' Scheelite in quartz veins ingran- two quartz veins in altered sha- ite . le and sandstone . 34 . Thanksgiving. Scheelite in qua- 32°21' 112°03' 45. Helvetia district. Finely diss- 31°52' 110°47' rtz lens 1 foot by 15 feet in eminated scheelite in copper granodiorite . ore in tactite . 35. Silver Dollar . Scattered wol- 32°07' 111°52' 46. Hilton Ranch . Fine-grainedsch- 31°53'' 110°38' framite and same scheelite and eelite sparsely disseminated in barite in a quartz vein 6 to 10 1 tactite 4 feet thick. inches wide . 47 . Whetstone Mountains . Conlig 31°50' 110°23' 36. Gold Circle . Wolframite and 32°49' 110°57' (Chadwick), Wolframite and scheelite in 2 narrow quartz scheelite in quartz veins •in gra- veins in granite . nite. Evening star . Wolframite in quartz vein in schist . San 32°50' 110°43' 37. Tarr . A little wolframite and Juan (Nunnelly, Valenzuelos) . scheelite in 7 quartz veins. Wolframite in quartz vein in 38. Mammoth . Tungsten-bearing 32°43' 110°41' granite . wulfenite, reported to containup 48. Calabasas area . Woiframite and 31°26', ' . 110°57' to 2 percent of WO3 in Pb-Mo some scheelite in narrow quartz concentrates . Peterson, 1938 . veins in n gra granodiorite. 39. Bear Cat . Scheelite in 2 nar- 32°3S' 110°44' 49. Red Mountain . Unidentified tung- 31°24' 110°43' row quartz veins . Wilson, 1941 . sten mineral in sericitized zone 40. Coronado . Small bunches sche- 32°29' 110°45' 5 feet wide in porphyry . Wilson, elite in quartz lenses in horn- 1941, fels and schist . Corregidor . Sch- 50. Patagonia district . Scheelite 31°23' 110°42' 3 Locality Index (cont'd . ;r CALIFORNIA (cont'd .) ARIZONA (cont'd .j eelite in tactite . Krauskopf, sparsely disseminated in some 1953, tactite and associated lead -zinc- 13. Obelisk mine . Scheelite in tact- 30°54' 118°32' copper ore bodies. ite .

51 . Zaleski . Vein up to 7 inches 31'22' 1111°14' 14 . Cons(IlidateJ tungsten mine 3(,°'3s' 11401 ' wide contains irregularly dis- 'Harrel Hill ii . Scheelite in tact- tributed scheelite and sparse ite . -,,uodwin, 14511 ; Krauskopf, galena in granite . 1953 . 15 CALIFORNIA . 'I ulare County Tungsten mine 36°1-' 113°55' (Big Jim mine'( . Seheelite in 1. Grass Valley district . Scheelite 39°13' 121°01' tactile" Goodwin, la ,is ; Krau- widespread , though usually not skopf, 1933 . present in economic quantities, I6" flat xin district . Scheelite in tac- in gold-bearing quartz veins Joh- 36°1h' 11-°34' tire nston, 1940 ; Farmin, 1941 . . Hall and h'1~acKevett, .1a58 171 . Tyler Creek mine . Scheelite in 3 ;°'53118'4L3, 2. Alpine mine . Scheelite in tactile . :38'44' 1110'7,8' tactile . Gocldwon, 19-8Krau- 3. Valpine mine (Burnside Lake de- 3'S°43' 119°53' skopf, 1953, posit). Scheelite in tactile . 18. Tungstore mine . Scheelite in 3 ;°4G' 115°40' 4. Strawberry mine . Scheelite in 37°33' 119°18' tactile . Good', in, 1935 ; Krau- tactite . Krauskopf , 19,33 . skopf, 10 ;3 .

5 . Black Rock mine . Scheelite in 3-°41' 118°31' 19 . i 'oodr . mine . Scheelite intactite . 35°46' 115°49' tactile . Rinehart and Ross , 1957 . 20 . Cedar Creek district (includes 351'°4 .5' 118°3 .1' 6. Pine Creek area (includes Pine 37°23' 11S°43' Owl, Addelsack and Moyer, Cad- Creek, Round Valley Peak, Brow- iliac, Buckhorn (Why Not)' lajor nstone , Adamson , Hanging Val- Tungsten (Junehone and Sweet ley, Lakeview , Lambert, Molly Marie, Rand) mines, High Power Tungstite , Mountain Basin , and claim, and ideal ,group), Sche- Tungstar mines ). Scheelite with elite in tactile . molybdenite and powellite in tac- tite. Bateman, 1956 . 21 . Hi Peak mine . Scheelite in tac- 3a°41' 117°53' tile . 7. Tungsten Hills (includes Aero- 37°'21' IlS°32' ) 2 . Seurles Lake plane, Buttermilk (Van Loon,, . Tungsten recog- 3a'°4m' 11 7'20' nized in brines and end liquors Hilltop, Jackrabbit , Little Shot , Little Sister , Lucky Strike, Round of chemical processing early in Valley , Tungsten Blue, Western, ~World War II . No commercially feasible process to recover itas and White Caps mines)a . Bateman and others , 1950 ; BBateaseman, man, 1956, by-product has been developed, Brines contain 0 .005 to 0 .008 8 . Rossi and Yaney mines . Sche- 37°19' 11S°24' percent W03 . Staff of American elite in tactite at the Rossi mine ; Potash and Chemical Co . esti- ferberite pseudomorphous after mate total amount of W03 in scheelite , in altered siliceous brines to be about 8,500,000 rock, at the Yaney mine . Bateman , units . Carpenter and Garrets, 1956 . 19 9 . 9. Schober mine (also Oomph, Black 3I'°14' 1l8'32' 23 . Tungsten Chief mine ; also, Mar- 3a°27' 118°31' Monster, and Snow Queen) . set, Green Wonder, Basin View, Coarse-grained scheelite intact - Mountain View, Little Wonder, ite, composed principally of pyr- and No-See-Um . Scheelite in rhotite, quartz , and some garnet , tactite . Dibblee and Chesterman, epidote, and calcite . Bateman, 1953, 1956 . 24 . Atolia district . Scheelite inqua - 35°19' 11-°3'" 10. Marble mine . Scheelite in 3?°12 ' 11S°23' rtz veins in quartz monzonite ; tactite . Bateman , 1956 . scheelite placer . Lemmon and Dorr, 1940 ; 11 . Mud Lake (Garnet ) deposit . 37°0," 119°05' 1954 Bateman and Irwin, Scheelite in tactite . Krauskopf, 1953 . 25. Starbright mine . Scheelite in 3.5°07' 116°54' tactite . Hazenbush, 1952. ; Wri- 12 . Garnet Dike and Quigley Kings 36°53' 119°01" River mines ; also Quigley, ght and others, 53 ; Base man Wet Spot, and Lime Ridge . Sch- and lr vin, 1954 . 4 Locality index (cont'd .) CALIFORNIA (cont'd.) CALIFORNIA (cont'd.) tactite, 26. Greens mine. Wolframite in qua- 35°33' 115°34' 43 . Blue Star group . Scheelite in 37°40'' 110501 rtz veins . Wright and others, tactite . 1-11 1953 . 44 . War Baby . Scheelite in tactite . 37°25' ' 119°41' 27 . Old Woman Mountains . (Hidden 34°32' 115°13' Value and Howe Tungsten mi- 45 . White Goat claims . Tactite . 38°35' 119°25' nes) . Small rich lenses of tact- 46 . Brown Horse . Tactite . 38°32' 119°32' ite . Bateman and Irwin, 1954 ; 47 . Laughmont claims . Tactite . 38°28'; 119°27' Wright and others, 1953 . 48 . Saddlebag Lake 28 . Aguanga district. Scheelite in 33°25' 116°42' . Tactite . 37°58'r ; 119°17' tactite . Bateman and Irwin, 1954 . 49 . Laurel Creek (Jessie) . Tactite. 37°34' 118°55' 29 . Washington mine . A little sche- 40°43' 122°40' 50. Tiptop (McGee Mountain, Tac- 37°35" 118°49' elite in quartz vein mined for tite . gold . 51 . Scheelore . Scheelite, in tactite, 37°32' 118°51' '29a. Wangoodlord claims . Scheelite 41°14' 123°15' and in talus . Output 1,032 units in tactite . in 1942-1944 . 30. Clear Creek . Thin films of sch- 40°32' 122°32' 52 . Hilton Creek. Tactite . 37°31' 118°46' eelite in biotite quartz diorite . 53. Black Irishman, Morris (Ameil) Kinkel and others, 1956 . , 37°43'' 118°36' Pine Tree, Granite, and West 31. Inverness (E . A. Bender and 38°04' 122°50' Tower (Otey) . Scheelite in tac- C. R . Noren properties) . Sche- tite. elite in tactite bodies in grani- 54 tic rock . Ver Planck, 1955, . Shadow Creek (Nidever) . Sche- 37°4'1' 11'9°li' elite in tactite . 32. Dobbins Ranch . Scheelite in qua- 39°21' 121°14' 55. Beasore claims . Wolframite in rtz, 37°39' 119°11' quartz vein in granite . 32a. Dewey Anderson Ranch . Sche- 40°04' 120°10' 56. Church and Jones , elite in tactite . and Ghost 37°32' 119°24' Canyon claims . Scheelite intac- 32b. Rubicon River Tungsten pros- 39°05' 120°21' tite . pect . Scheelite in tactite . 57. Sunset and Sunnyside No. 2 (Wal- 37°31' 119°23, 33. Bear Creek mine (Comeback 38°50' 120°45' ker group) . Scheelite in tactite. Consolidated) . Scheelite in len- ses of coarse calcite inphyllite . 58. Yellow Jacket. Scheelite in tac- 37°31' 119°28' Clark and Carlson, 1956 . Cite. 59. Red Lily and Tin Bucket No. 2 37°26' 119°35' 34. Williams prospect . Scheelite in 38°40' 120°43' tactite . claims . Scheelite in tactite . 35 . Grizzly Flat (Sciaroni Bros .) 38°40' 120°34' 60. Victory group . Scheelite in tac- 37°24' 119°35' Cite. Scheelite in tactite. Clark and Carlson, 1956 . 61. Love & Ibbeston (Central), and 37°23' 119°31' Lucky Day No . 1 (Tip Top, 36. Zaca mine . Huebnerite in epi- 38°40' 119°42' thermal gold and silver ore . Sellars) . Scheelite in tactile . Gianella, 1938 . 62. Washington No . 3 . Scheelite in 37°24'' 119°48' tactite. 37. Garnet Hill and Moore Creek. 38°29' 120°15' (Bay Horse and White Horse) . 63 . IxL claim . Wolframite in quartz . 37°20' 119°50' Scheelite in garnet tactite . 64. Victory mine . Scheelite in tac- ~rl0' ' 119°48' 38 . Sivori and Lucky Strike groups . 38°02' 120°11' tite . Scheelite in tactile . Abundant 65. Jones mine (R & W Tungsten 37°18' 119°43' pyrrhotite and pyrite . Co. ). Scheelite in tactite . . Montezuma, Dorothy Lake, and 38°10' 119°37' 39 66. Black Eagle claims . Scheelite in 37°17' 119°35' Yosemite National Park mines . tactile . Scheelite in tactite . 67. Church Ranch. Scheelite in tac- 37°15' 119°36' . Big Grizzly group . A little sch- 37°40' 119°53' 40 tile. eelite in gold-bearing quartz veins . 68. Welsh Ranch . Scheelite in tac- 37°11'' 119°34' tile. 41 . Blue Dipper . Scheelite in tactite. 37°42' 119°50' 69. Lone Pine No . 2 claim . Sche- 37°09' 119°32' 42 . Blue Shot group . Scheelite in 37°41' 119°48' 5 Locality Index (cont'd .) CALIFORNIA ( cont'd .j CALIFORNIA ( cont 'd .) 91. Traweek mine (Strickland ;i and 3134~' 119°10' elite in tactite . South side (Tea- Fulgham prospect . Scheelite in ford ; Fish Creek Mountain, tactile . Sherwood Green ). Scheelite in 92 . Dixie Queen and Hurley . Sche- 36°44' 119°08' tactite . elite in tactite .

70. Mt . Tungsten prospect . Scheelite 37°07i 119°38i' 9'3 . Lone Pine Nos . 1-3 claims . 36°410 119°U1 C in tactite . Scheelite in tactite . 71. Hughes claim . Scheelite in tac - 3T°10' 1 .19°27' 94 . Barrington and Cutler pro- 36°3C 119°03' tite . spects . Scheei_ite in tactite .

72 . Carothers and Wissemanmines . 37°1S 119°20' 90 . Ka,w eah River mine and Eshom 3F°'3 ;' 118°5S' Scheelite in tactile . Creek . Scheelite in tactite .

73 . Prior Lake claim . Scheelite in 37°1' 119°11' 96 . Redwood Canyon (Barton), Tac- 36° .39' 119°,S2' tactite . tile .

74 . Question and Twin Lakes cla- 37°183' 119°lO' 97 . Homer and Davis Ranches . Sch- 36°I32' 118°58' ims . Scheelite in tactite . eelite in tactite .

75 . Emerald Peak claims . Sche- 31°10' 11S°47' 98 . Alice Homer prospect . Scheelite 36°30 119001' elite in tactite . in tactile . 76. Garnet mine (Defense group , 37°09' ll9°OS' 99 . Kaweah Molybdenum \lining Co . 3b°'34' 1188°34' Qualls ). Scheelite in tactite . , little wolframite, scheelite, 77. Homer's Tungsten quartz vein 3'°04 119°00' molybdenite, and pyrite dis- and Little Uncle claim . Sche- seminated in granodiorite, elite in tactite . 100 . Carter . Tactite . 3h°"24' 1 .18°55' 78 . Dinkey Creek mine (Lobo, Sad- 3,°03' 119"09' 101 . Blossom Peak . Scheelite in tac- 3(,°25' 118°5'3' dler), and We Hope claims . Sch - Cite in shear zone in grano- eelite in tactite . diorite . Goodwin, 19,58 . 79. Victory mine . Scheelite in tac- 3701' 11 8'°57' 102, Eagle (Buckeye] claim . Tactite, 36°23' 118°49' tite. Grey Fox (Three R .avers) Sche- 36°23' 118°$O' elite in tactite . 80. Big Oak . Scheelite in tactile. 3700' 119'°'30' 103 . Mineral King . Tactite, 81. Home Front prospect (Humph- 3700' 119°24' 36'°2'8' I1 8 °35' reys, Western Sierra ) and Three 1014 . Baty mine . Scheelite in tactite . 3t'19' 114°02' Buddies claim . Scheelite in tae - IOS . Baker Lease tite . . Scheelite in sili- 36'20' 11$°S9' sated limestone . Goodwin, 82. Jackpot and Adrain Alexander 3f6°59' 119°21' 1958 . (Red Bud, Spanish Peak ) mines . Scheelite in lactate, 100 . Royal Tungsten and Martin Cla- 36°20' 186°'49' ims . Tactite . Pioneer ('Good 83. Benson-McMurtry , Rabbit's Fo- 36058' 119°17' Hope) . Scheelite in tactite . ot, and Ground Hog . Scheelite in tactite . 1W . Thanksgiving . Scheelite in con- 36°14' 116°n3' tact zone with hedenbergite and 84 . Lone Pine claim . Scheelite in 36° ;8 119°15" and pyrrhotite . Goodwin, 1958 . tactite . 108 . Herbert and Crabb(VernonGill 36°06~' 118°48' 85. Ridge prospect andToprockcla- 3f°57' 119°10' Ranch) . Tactile . Big Mack . Sch- 36°0T' 116°47" im . Scheelite in tactile . eelite in tactile . Goodw-in, 1958 . 86 . Kings River Tungsten mine 36°5 .' 119°0g' 109 . Tale Indian Reservation . Tac- 36°©'2' 118°46' (Houghton Bros .) and Poor Man Cite . claims . Scheelite in tactile . 110 . Carver . Scheelite in tactite . 3e°'U0' 118'3'3' 87 . Balch claims ( McBride Tung - 36° .54' 119°07' 111 . Sunnyside Nos . 1-6 sten). Scheelite in tactile . . Tactite . 36°'02' 118°28' . Kern River claims . Tactile . 88 . Spanish Peak claim . Scheelite 36°55' 118°53' 112 35' ;9' 118'29' in tactite . 113 . Sherman Peak . Tactite . Brush 30°CIO' 11 .8°23' 89. Converse Creek. Scheelite in 36°,50' 11S°49' Creek Nos, 1-4 . Scheelite in 35°iS' 115°24' tactite . tactile . 114 . Credon Mountain 90 . Terrill prospect . A little sche- 30 n4' 119°C' . Scheelite in 3S°55' 118°52' elite in 3-inch gouge between tactite . Goodwin, 1958 . schist and quartz diorite. 115 . Blue Ridge claim . Scheelite in 3 5°a4' 11S°47' Locality Index (cont'd .) CALIFORNIA (cont'd.) CALIFORNIA (cont'd .) 134. Panamint district . Scheelite in 36°07' 117°05' tactile, quartz veins with silver min- erals . 116 . White River Lode mine . Sche- 35°48' 118°52' elite in quartz ,. 135. Aldridge, Black Mountain King, 35°43' 118°30' Jackpot No . 2, Regan, Trojan, 117 . Indian mine . Tactite . 35°48' 118°49' (El Diablo) and Tungsten Queen . 118 . Kern-Sierra mine . Tactite . 35°54' 118°08' Scheelite in tactile . 136. Buck . Tactite . 119 . Division Creek . Tactite. 36°57' 118°20' 35°42' 118°28' 120 . Mohawk shaft area, White Mou- 37°29' 118'18' 137 . Big Blue, mine . A little sche- 35°44' 118°25' elite in quartz veins formerly mainsains. Scheelite in quartz vein, worked for gold . 121 . R and R claims, White Moun- 27°21' 118°15' 138. Mintern group, Good Hope and tams . Tactite . 35°44' 118°23' Little Dick group, Grandad, 122 . Shasta Rose and Mountain View. 37°26' 118°03' and Play Boy . Scheelite in tac- Scheelite in quartz veins in tite and limey hornfels . quartz monzonite . 139 . Sure Go, Big Shot, Scheelite 35°46' 118°04' 123 . Scheelite Nugget, Deep Spring 37°22' 118°06' King, and Starlite . Tactite . - Valley . Scheelite, in veins 1 to 140 9 inches thick in marble, with . Valentine claims . Tactite . 35°39' 118°05' calcite, quartz, pyrite, and oxi- 141 . Magnolia and Pyavin groups 35°42' 117°58' dized copper minerals. (Indian Wells Canyon) . Tactite . 124 . Target claims . Scheelite in 37°21' 118°02' 142 . Bald Eagle . Tactite . 35°37' l18°22' quartz veins in quartz mon- 143 zonite . . Stardust (Cottonwood, Dorris 35°36' 118°l7' and Cuddleback), Tungsten Big 125. Copper Queen . Scheelite with 37°23' 117°58' Lode, Digger Pine (Plasse, R . lenses of oxidized copper ore S.), and Kelso View . Tactite. in fractures in limestone . 144 . Bald Mountain group . Scheelite 35°35' 118°30' 126 . Scheelite group, Inyo Range . 37°14' 117°58' in . 3 quartz veins in granodio- Some scheelite in 12-inch vein rite . of copper minerals . 145 . Prosperity, Tungsten-V, Bro- 35°33' 118°31' 127 . Waucoba (Last Rose), Inyo Ran- 36°58' 117°56' wn Ranch, Blackbird, Four K, ge . Scheelite in veinlets in Tungsten King, and Tungsten altered argillaceous dolomite . Hill . Scheelite in quartz veins 128, Jumbo, Inyo Range . Scheelite in 36°48' 118°02' in granodiorite, and in tactile, tactite . 146. Fidgie group . Scheelite, moly- 35°34'' 118°24' 128a . Saline Valley . Tungsten-bear- 36°49' 117°46' bdenite, and powellite in tac- tire . ing cryptomelane ; inhotspring travertine . Hewett and Flei- 147 . Weldon Meadow claim (More- 35°29' 118°20' scher, 1960 . land). Tactite . 129 . Ubehebe district . Monarch . 36°35' 112°30' 148. Naja, and Williams Ranch (Ni- 35°26' 118°23' Huebnerite (or ferberite) in 36°36' 117°33' to prospect) . Tactite . quartz vein. Cuprotungstite 149 (Alvord?) . Scheelite in tactile . . Locarno, and Gwynne mine . 35°24'' 118°20' McAllister, 1955 . Minor scheelite in gold-bear- ing quartz veins in granite . 130. Lone Pinyon, Coso Range. Sch- 36°15' 117°47' New Deal claims (Orrelr ; Don- 35°25'> 118°17' eelite in tactite . levy) . Small amount of sche- A . 131 . Coso Range. Beverly . Scheelite 36°13' 117°39' elite with arsenopyritE and in crushed quartz diorite . Keo- 36°13' 117°36' muscovite in quartz vein in granite . ugh and Panyo . Mountain Kid . 36°11' 117°40' Scheelite in tactite . 150 . Top of the World . A little 35°16'' 118°31' 132 . Feldman, Coso Range . Sche- 35°56' 117°53' scheelite in stibnite-bearing elite in quartz vein . vein. 133 . Sheephead . Scheelite in quartz . 36°19' 117°02' 151 . Minnehaha mine (Indian Creek). 35°16' 118°22' Victory, Panamint Range . Scheelite in gold-bearing qua- Scheelite in limestone and tre- rtz vein. molite rock . 152 . Big Boy claims (Blue Point, 35°19' 118°05'

7 Locality Index (cont'd .) CALIFORNIA (cont'd .) CALIFORNIA ( cont 'dj j elite in tactite in Precambrian Jawbone Canyon ;. Scheeliteand gneiss rime-a schist with l wolframite in greisenized ~gra- stone lenses, ~u~'rightt and nice, others, 1953 . Ah-1 . CEd ;ukn IChubbock scheelitel . 153 . Summit Lime Co . f B e 1'e mn ,5 ; 34'='h' i i c°14' V Scheelite in tactile, Akright and BCM Nlines ;i, Pine Trey, and Wild Cat (Baltic, Nixon, . Rich others, la73' scheelite and some told in 5, Peattti, Schcelite in quartz "31 ;°4_' 11_°2U,, quartz -carbonate veinlets in veins in gr- :,nite, granite . H r . Blue Re and Black Mountain . '33°'S1' 11b'°57' 154 . Standard district, Evening Star a-°23' 11,E"'33' ScheFelite in t+set[te . (Bernice claims ), Blue Grass claims, and Maynard Finpros - ltAndreas Canton . Scheelite in 33°4 ' 111,°34' pect . Scheelite in tactile, tactrte . . Cottonwood 155 . New York Mountains, Carbo- 3m'1„ 115°'21' 10S . Scheelite in tac- 33°44' 116°2" nate group . t+Volframite in qua- tile . rtz . Door mine and Brooks 35°15' 11 :z°211' 154, Santa Rosa Mountains. Garnet 33°34' 116°24' prospect . Huebnerite in qua- C"Iueen, Ragsdale, Milky Way, rtz . Live Oak mine (Bronze) . ;'l5,3 il~°1„ and Ribbonwood . Scheelite in Scheelite, sphalerite , fluorite, tactite in migmatite . pyrite, and chaleopyrite in qua - l-0 rtz vein in granite . Sagamore 3 .°t5' 115'°1„ . Miller Ranch . Scheelite in tac- 33'°30' 116°19' mine . Huebnerite , galena, Cite . sphalerite , chalcopyrite, and 171 . Big Henry . Scheelite in tactite . 33°52' 115°'35' minor scheelite in quartz vein . ;°I's" 1 2• Chuckati~alla Mountains . Sehe- Gillsmith and Victory . Sche- 35°1B' 11 Sche- 33°38' 11,5°20' elite and fluorite in quartz, elite in quartz veins on south side of mountains . Also wol- Tungsten King . Huebnerite in an In ' 115°24" quartz . framite, with scheelite, in qua- rtz on north side . 156. Pat claims , Providence Moun- 35°04' 1t ;'3( 7" tains. Huebnerite in quartz 172a, Red Ocher claims, Scheelite 33°53' 114°52' veins, in quartz veinlets in lime- stone . 157. Signal district . Wolframite in 35°02" 115°09' 1'3 quartz veins in granite , . Palomar . Scheelite in tactile . 33°1S' 116°49' ;'°'32' 1"4• New Hope No, 2 . Scheelite in 158 . Shadow Mountains , Northern 34°45' 11 32°57116'29' part . Just Associates , Blue tactite . Star, and Baxter Apex . Sche- I -4j . Felden and Holloway . Sche- 33"011' 116°26' elite in tactite . elite in tactile . 159. Shadow Mountains , Southern 34°40' 117 321 17c . Sundown . Scheelite in tactile . 32°55' 116°25' part . Beacon and Bonanza Dome claims, Tungsten King, May- I-0 . Mica Cem (Randsbur -1 Sche 32°3S' IIh°GLis' belle, New Discovery , White elite in taetdte . House, and Oraibi . Scheelite 1-6a . Paymaster district . Tung- 33°12' 114°49' in tactite . sten -bearing psilomelane ; in 160. White Dollar mine (Mayday) . 34'°43' 116°48 veins in Tertiary sandstone . Scheelite in tactite in shattered Hewett and Fleischer, 19OG . metavolcanic rocks . Wright and 1", Cargo Muchacho . Scheelite in 32°50' 114°47' others, 1953 . quartz veins and lenses in gnei- 161 . Pure Quill . Scheelite irregu- 34°39' 116°53' ssic quartz diorite, larly disseminated in Precam- w brian amphibolite. Wright and COLORADO others, 1953 . 1 . Greenrock and Spaudling de- 40°'43' 1115°19' 162 . Morongo district . Shooting Star 34°13' 116°42' posits . Scheelite in Precambrian (United Tungsten Copper Mines caic-silicate gneiss . Belser, Co.), Blue Vase , Antelope, and 19,50a . Treasure Chest . Scheelite in 2, Lookout and Challenger deposits , 40°38' 10 ;,°2 5 ' tactite. Morongo King (Sunny - Scheelite in Precambrian calc- side). Scheelite in quartz. silicated gneiss, Belser, 1956a . 163 . Clipper Mountains mine . Sche- 34°47" 115°23' 3 . Nilasonv'ille deposits (Carter Tun- 8 Locality Index (cont'd.) COLORADO ( cont'd .) COLORADO ( cont'd .) 11 . South Platte Gulch. Wolframite 39°21' 106°05' nel and Mason Ranch) . Minor and scheelite in pyritic quartz veins in Precambrian gneiss occurrences of scheelite in old . stopes on gold-quartz veins . Singewald, 1951 . . Climax. Huebnerite is anacces- 39°22' 106°11' 4. Thomson Canyon . Scheelite show- 40°25' 105°13' 12 ings in Precambrian calc-silicate sory mineral in the Climax mol- gneiss and amphibolite . ybdenum deposit, which is a cir- cular and partially domed body 5. Jamestown district . Pockets of 40°07' 105°22' surrounding a plug-shaped mass ferberite and wolframite (two sta- of barren silicified Precambrian ges of tungsten mineralization) in rock. Tungsten is erratically gold telluride veins, particularly distributed in the molybdenum in Wano mine. Lovering andGod- ore ; large blocks of ore contain dard, 1950 ; Lovering and Tweto, 0.02 to 0.04 percent W03, but 1953 . some ore contains as much as .1 percent WO3, and some as 6. Ward district . Wolframite and 40°04' 105°30' 0 scheelite in pyritic gold-copper little as 0 .001 percent . Vander- quartz veins . Lovering and God- wilt and King, 1955 ; Wallace and others, 1960 . dard, 1950 ; Lovering and Tweto, 1953 . 13. Sweet Home mine . Huebnerite 39°18' 106°07' 7 . Boulder County tungsten district . 39°57'- 105°22'- in sulfide-quartz veins in Pre- Ferberite ore (and minor sche- 40°02' 105°32' cambrian granite and overlying Cambrian quartzite . Singewald elite) in chalcedonic quartz veins and Butler, 1941 . cutting Precambrian granite and metamorphic rocks . Ore in veins 14. Leadville . Wolframite and sche- 39°14'` 106°14' only a few inches wide, forming elite in pyritic gold ore of Bre- small but rich ore shoots, many ece Hill . Emmons and others, containing less than 1,000 tons, 1927 ; Fitch and Loughlin, 1916 . but with grades of 5 to 20 per 15 . Tarryall Springs district. Sche- cent WO3 . Average ore shoot 39°01' 105°27' yields 2,000-3,000 units W03 . elite-Powellite in Precambrian calc-silicate gneiss, which Tungsten deposits worked in more than 200 miles, mostly small, forms at least three long, nar- row streaks , a mile or two and mostly less than 200 feet deep . Many undiscovered ore sho- apart, in granite near the west edge of the Pikes Peak bath- ots probably remain . Lovering and Tweto, 1953 ; Colorado Metal olith . Belser , 1956b ; Tweto, 1960 . Mining Fund Board, 1960. 16 8. Blackhawk district . Pockets of 39°48' 105°29' . Heavystone prospect . Minor 38°45' 104°57' ferberite ore in copper-silver- wolframite in quartz vein in gold veins, particularly in Chi- shear zone in Precambriangra- nite . huahua mine . Sims and others, in press . 17. Nipple Mountain prospect . Wol- 38°38' 105°07' . Lake Fork Gulch (Foster Ranch) framite in quartz veins in Pre- 9 39°47' 105°25' cambrian granite . Scheelite in Precambrian . Belser, deposit 1956b calc-silicate gneiss . Tweto, 1960. ; \Mining and Sci . Press, 1915 . 9a. Red Mountain deposit . Huebne- 39°46' 105°50' rite in quartz veins (?) near 18. Bond Ranch deposit . Wolframite 38°35' 105°06' in quartz veins in Precambrian border of Urad molybdenum de- granite . Belser, 1956b. posit . Theobald and Thompson, 1959 . 19. Guffey district, west . Scheelite 38°45'' 105°34' at several localities in Pre- 10. Monte Cristo Gulch deposits . 39°23' 106°06' cambrian calc-silicate gneiss Huebnerite-quartz veins in Pre- and skarns cambrian rocks . Quartz veins . Belser, 1956b . are lenticular, and huebnerite 20. Guffey district, southeast . Sche- 38°43" 105°30' within them is erratically dis- elite at several localities in tributed ; production from poc- Precambrian calc-silicate gne- kets yielding only a few pounds iss, and in copper-bearing qua- to a few tons of high-grade rtz veins or lenses in the gneiss . (over 5 percent W03) ore . Singe- Belser, 1956b . wald, 1951 . 21. Currant Creek deposits . Sche- 38°37'!"' 105°30' 9 Locality index (cont 'd.) COLORADO icont'd ., COLORADO f,cont 'd, h 35. Dunmore vein. Huehnerite in 375c), 10"°39' elite at several localities in siliceous pipes in Dunmore Precambrian talc-silicate gne- mine, and in quartz at other iss . Belser , 19S6b, localities on Dunmore vein ; in I'ertiar}' volcanic rocks . Kelly , 22 . Oliver prospect . Scheelite in 3N°22' if °3n' 194r; . Precambrian amphibolite . i3el- ser, 1956b. 'r , 1 pp i I ncti,mp in-ri mines . B °~ } Huebnet itce in p('ckets in base- 23 . Copperhead mine . Scheelite in 3`i°3" liD°}4' metal sulfide ins In T~rtirar, copper-quartz ore of old copper volcanic rocks . Aelser, lra~hi ; mine . Kelley, E 0 -lh . 24 . Calumet mine . Scheelite in old 38°39' llln°SB' 37, Animas, Forks deposits, Hueh- 3,' ' 9{i-°3''' iron mine ; magnetite and tactire norite in quartz hands in base- in Mississippian limestone near metal sulfide v;eins,particularLi contact with granodiorite stock . in Tom Moore mine, Burbank and 25 . Sage prospect . Scheelite in psi- 38t°35' 10n°56° others, IQ4- ; Belser, 19nt;a . lomelane matrix of strong brec- 38. Cement Creek-Gladstone area . 3-`3' 1073a' cia zone . Belser , 1956b . Huebnerlte in pockets and in 26 . Cleora district, Scheelitein cop. - 38°31' 105°,S' banks of quartz in base-metal per-quartz veins of Precam - sulfide veins . But-hank and otlh- brian age in several old copper ers, 1947 ; Belser, 1956a ; Pros- mines ; also , in quartz fragments ser, 1910 . in thick breccia on flat thrust 39 , Ruby mine . Huebnerite in qua- fault . Belser, 1956b ; Tweto, rtz " hands in base-metal sul- 1960. fide vein in volcanic rocks . Bur- 27 . Mt . Aetna deposits . Huebnerite - 38°35' Il?6°18' bank and others, 1017 ; lielser, quartz veins in quartz monzonite ;1056a Prosser, 1 41f1 . porphyry . Dings and Robinson , q0 . Sultan Mountain . Huehnerite in 3-'48' 10-°41' 1957 . sulfide veins cutting Tertiarv 28 . Gold Hill ( Cumberland Passi 38°41' 1iJfi°'2U' quartz monzonite stock, Burbank deposits . Several huebnerite - sand others, 1047 ; P,elser, IQ ;oa ; quartz veins , some of which are Prossor, 1x10 . pyritic, in Precambrian granite . 41 . is hir district . Huehnerite in Dings and Robinson, 1957 . sulfide veins, :and in quartz 29 . Poncha Pass prospects . Sche- 38°27' 1I-10' 03' stringers in vein walls ; in qua- elite in quartz veins in Precam - rtz monzonite . I-,urbank and oth- brian schist . ers, 104 F lser, 14=r.~ :a . 30. Villa Grove deposit . Tungsten in iii°1-1' 11"15° R^ 42 . y'l ii shall I i c k . Hu,•bnerit,~ in °lf unknown form in manganese ore h3LZ;e-metal Montana vein . F ;ur- filling breccia along faults cutt - bank and others, 104 F.els,r, ing volcanic rocks . I`a -,-,r•

31 . Bonanza district . Minor wolfra - 38°19' H-WIoS, CGV'Nl'_CTPCU'T mite in copper sulfide ore , parti- cularly in Rawley tunnel . Bur- N9onrne II inc ". min , . 11'clfra- 1 V°'a' ,°1 bank, 1932 . mite, tungstirc, and sche,.lite in quartz vein rich in m a casite and 32 . Cochetopa prospect . Scheelite in 3h°lS' 101046 also c ,nt:aininig sphalerite, go- small amounts in Precambrian len,a, arsenopyrite, native biz- pegmatite and metamorphic muth, and native silver . hhepard, rocks . 183- : Crurlt, 1'8c44 : Hobbs, 191:11'. 33. White Earth district (Kezer and 3S°23' 101°iLM7' Kerr, 1048, 41 Lilly Belle mines ). Scheelite in 2, Long Hill 'Trumbu111 . Scheelite 11°23' 3'°1b' quartz and clay veins on faults tnd wolframite in pegmatite cxnd between Precambrian rocks and tactite . Silliman, 1514, Tejtiary volcanics . Belser, 1956b . II 11 ;1HC) 34. Ouray . Tungsten in unknown 38°x'32' 1(7?°-10' 1 . tlueen \itn . deposits, ~Schceelite 4O 4' Ilfr°I ' form in manganiferous hot with sulfides in quartz vein in spring deposits, basic sill . Kirkham and L11is, 10'_7(4 ; Livingston, )gl0 . 10 Locality Index (cont'd .) IDAHO (cont'd .) IDAHO (cont'd .) elite in tactite and in altered 2 granite bordering tactite . Cook, . Talache district. Huebnerite and 48°07' 116°28' 1956 ; Ross, 1937 . scheelite in silver veins . Samp- son, 1928 . 19 . Ima mine . Huebnerite in quartz 44°32' 113°41' veins, with sulfides, inquartzite 3. Murray district . Accessorysche- 47°37' 115°53' near granite . Callaghan and elite in gold-quartz veins . Shenon, Lemmon, 1941 ; Anderson, 1948, 1938 ; Livingston, 1919 ; Auerbach, 1903 . 20. Mackay district . Scheelite-pow- 43°52' 113°40' ; some copper- 4. Pine Creek district (Big It mine). 47°28' 116°13' ellite bearing . in Cook, tactite, 1956 Umpleby, •Scheelite in antimony-quartz ve- 1915 . ins . Jones, 1920 . 21. Wildhorse district . Scheelite in 43°47' 114°06' 5. Beauty Bay (Elk Mountain) dis- 47°35' 116°37' strip of tactite in pendant of trict . Scheelite in quartz veins metasedimentary gneisses . Sev- and stringers in rhyolite dike, eral occurrences over length of ' Jones , 1920, 3 miles . Cook, 1956 ; Umpleby 6. Tenmile district. Accessorywol- 45°50' 115°40' and others, 1930. framite and scheelite in quartz- . Summit Creek district . sulfide veins . Shenon and Reed, 22 Scheelite 43°52' 114°12' in tactite ; several occurrences . 1934 . Cook, 1956 ; Umpleby and others, 7. Seven Devils district, Scheelite- 45°08' 116°38' 1930 . powellite in tactite in small quan- 23 . Fourth of July deposits (Meadow 44°03' 114°39' tities at several localities j . Li- View, etc .). Scheelite in silver- vingston and Laney, 1920 . zinc veins or streaks in tactite, 8. Warren district . Scheelite in 45°17' 115°41' Cook, 1956 ; Ross, 1937 . `, gold-quartz veins . Livingston, 24. Washington Basin deposits . 44°01' 114°39' 1919 . Scheelite in pyrrhotite-quartz 9. Grunter deposit (Shoup) . Dis- 45°23' 114°18' vein . Cook, 1956 ; Ross, 1937 ; seminated scheelite in fractured UMpleby, 1915. gneiss . Umpleby, 1913. 25. Boulder Creek deposit . Sche- 43°48' 114°31' 10. Big Creek district . Huebnerite 45°08' 115°24' elite in tactite . Cook, 1956 . and scheelite in quartz veins 26 . Atlanta district . Scheelite in 43°47'' 115°08' in quartzite, and in quartz lenses gold-quartz veins shear zone. Cook, 1956 . Anderson, . 1939 ; Skidmore, 1941 . 11 . Profile Gap deposits . Scheelite 45°03' 115°25' 27. Corral Creek deposit . Ferbe- 43°26' 114°56' in sheared tactite. Cook, 1956 . rite in narrow chalcedony veins . 12 . Quartz Creek deposit . Scheelite 44°59' 115°28' Cook, 1956 ; Livingston, 1919 . in tactite . Cook, 1956 ; White and 28. Croy Creek deposits Carpenter, 1945 . . Scheelite 43°27' 114°27' in tactite . Cook, 1956 . 13. Oberbillig deposit . Scheelite in 44°57' 115°29' 29. Midnight deposit, Scheelite and tactite stringer in granite . White 43°26' 114°17' ferberite in quartz-sulfide ve- and Carpenter, 1945, ins . Umpleby and others, 1930, 14. Yellow Pine deposit and vicinity . 44°55' 115°20' 30 . Muldoon district. Scheelite in 43°38'' 113°54' Scheelite in gold-antimony ore silicified shear zones in lime- in large shear zone in granitic stone . Cook , 1956. rocks . Cooper, 1951 . 31 . Lava Creek district 15 . Scheelite- 43°31' 113°39' . Springfield deposit . Scheelite- 44°47' 115°23' powellite in tactite bearing p ok, 19 ite-tactite in ; huel-•nerite in quartz veins . Cook, 1956; granite . Cook, 1956 . Umpleby, 1917 ; Livingston, 16. Merry Blue deposit . Wolframite 44°21' 115°35' 1919 ; Anderson, 1929 . and scheelite in gold-quartz veins and in quartz in shear MAINE zones . Cook, 1956 . 1. Tunk Pond . Scheelite in peg- 44°45' 67°58, 17. White Hawk Meadows . Wolfra- 44°15' 115°30' matite. Hess, 1917 . mite and scheelite in quartz 2 . Blue Hill . Wolframite reported stringers and lenses in granite . . 44°24' 68°37' Hitchcock, 1861 . 18 . Thompson Creek mines . Sche- 44°19' 114°34' 3. Bowdoinham . Wolframite re- 44°01' 69°54' 11 Locality Index ( cont'd .) MONTANA (cont'd)) MAINE (cont'd .) workings . Stone, 1911 .

ported. Hitchcock, 1861 . 14 . Woodville deposit . Scheelire in 46°02' 112°24' quartz vein granite 4 . Topham . Wolframite reported . 43°,56' 69''5,S' . Need, 1912 . Hitchcock, 1861 . 15 . Butte district . Huehnerite as an 46r°00' 112'0 30 accessory in several of the cop- MISSOURI per veins ; and in silver-quartz veins east of Butte, where it 1. Silver mine . Wolfrwmite and sil- 3'°32' a0"29' ver-lead minerals in quartz ve- forms small cre .shoots, 1VL eod, 1912 ins . Tolman, 1933 . ; Winchell, 1010 ; yiininc and Scientific Press, l9f1 l - .

NION-1 .~ N .A 16, Foster Creek distt .c-ict . Scheelite 43,,°13' 113°0- 1 . Callahan Creek deposits . Sche- 41'2" I B ti°f l ;" and huc°bnerite in quartz veins, elite in lead-silver vein . Cal- scheelite in tactile . limmons and Calkins, 1913 ; 1" kins and MacDonald, 1909 . .alker, 193.0 . 1- 2. Midas Mine. Scheelite in quartz- 48°05' 113°31' . Georgetown Scheelite in 40°(14' 113°14' sulfide veins . Gibson, 1945 . replacement bodies and quartz veins in marble . Fmmons and 41°'05' 11 °'L-' 3 . Miller Creek deposits . Scheelite Calkins, 1913 ; ',Valker, 1963, in quartz streaks in shear zone . Calkins and MacDonald, 1909 . 1S, Storm Lake depce.its . Scheelitce 4300 ;' 113" 16' in quartz veins . Emmons and 4 . Argo Mine . A7kolframite in pyri- 4 6 ° '5'I 113°33' Catkins, 191,3, ; IN ;alker, 1460, tic gold quartz veins . ? . Re N Button: deposit . Schecelite -If °iI' 113"10' 5. Franz deposit . Huebnerite with 46031' 113°2 .5 in tactile . sulfides in quartz vein , Walker, 0' 1960 . 20. Brown's Lake deposit . Scheelitc 1121 in tactile in ?+,msden formation 6. Combination -Black Pine . Hueh- 4 °2'' 113°',1 . in roof pendant in ~ ranite . A1V nerite with sulfides in quartz e'rs, !9 2 ; Mining `World, 19 .5,3 ; veins . Volin and others, 1952 ; Fattee . 1960' . Emmons and Calkins, 1913 ; Wal- 430 ker, 1960 . Lost Creek deposit . Scheelite in ;9, 112'4k' tactite in ,'tmsden formation near 7 . Henderson Gulch deposits . Sche- 40'30' 113°13' granite . ;t1,, e, s, 1952 ; PatteE, elite in gold placer, and in low 19 r' 0, concentration in quartz -scheeltt,o 22 u veinlets in fractured granodioriiu . Birch Creek dep~:)sita 1 ,u g . adt• ''3' 112"40 scheelit+, -po+,a+r11it n t and bordering tactite . Hund- ;.actit, . hausen, 1949 ; Emmons and Cal- Myers, 19 ' ; p'stte , 1930, kins, 1913 ; Walker, 1960 . f?a . 1 ald Si':"entain disrrict . Sch+,- 4 1 (, 11)4' :'i 8 . Ophir district . Scattered occur- 40-13' 113°311' elite in tactite . f~ .attee 96' rences of scheelite in tactite . f'etusi deposits, Lone district ; -}4' 1 1 l'-i;' Pardee and Schrader, 1933 . Huc l ;norit, in qua ;'tz-sulfido v 1_' - ins t Sever al l 9 . Marysville district . Scheelit : in 4i5'40 i 12" 10' .calities . 11'in- tactite at several localities, and chell, 1014 ; hansle . and others., also in gold placers . Pa rde anti 933 . Schrader , 1933 ; Barrell, 1911- ; 24 . Emigrant district, lh;ngsten in Knopf, 1913 . unkn "vn form ;n iris, ft,ee I030 : 10. Colorado Gulch deposits . Sche- 4h°32' 1 11 I1' . elite :, :1, in tactite . Knopf, 1913 ; 1 .t_dint-C'rr ass~_ ,luuntaindis- -s ' 11 Pardee and Schrader, 1933 . triets. Sche lit • in quartz-,guld- 11 . Yogo Peak deposits . Scheelite 4355-' 1lc1°3l1' arsenop' ;~itr Bins, Seage r, a in sulfide -magnetite tactite and 1944, its oxidation products . Weed, 1899 . NiiV .SF A 1, 1defen e mine 12 . Kendall deposits . Huebnerire in 4T0l3' 109` '2" . Scheelite in tactile . 4 1' 2' 1 1 H`41 large dike of mineralized in- ? . Garnet 'l ungsten mine . Scheelite 41`4- IIS°-11' trusion breccia cutting lime- with nlolybdenitr , po+, ellite art,' stone . Fisher, 1930 . pyrite in tactite . Granger and 13. Diamond Hill mines . Scheelite 4b°19, lil° 0' others, 193T . in oxidized gold ore of old mine 3. Osgood- Range . Scheelire in tac- 41°13' 117'15 12 Locality Index (cont'd .) NEVADA (cont'd .) NEVADA (cont'd.) 23. Tungstonia diytrict. Huebnerite 39°40' 114°l0' tite . Hobbs and Clabaugh, 1946 ; in quartz veins . Newman, 1957 . 24 . Hub mine . Huebnerite in quartz 38°57" 114°21' veins . 4 . Golconda . Tungsten-bearing iron 40°57' 117°26' and manganese oxides in Plei- 25. Pole Canyon adit, Mt . Wheeler 38°54'' 114°20' stocene hot spring deposits . Kerr, mines . Scheelite veinlets and 1940 ; Penrose, 1893 . disseminations in limestone bed in Pioche shale near intersec- 5. Rose Creek mine . Scheelite in 40°51' 117°51' tactite . Roberts, 1943 . tions of fracture zone ; contains phenacite, bertrandite, beryl, 6. Tungsten, Mill City district . 40°47' 118°08' pyrite, and fluorite . Stager, Scheelite in tactite . Kerr, 1934 . 1960. 7 . Stormy Day mine . Scheelite in 40°25' 119°17' 26. Minerva district . Scheelite in 38°48' `114°21' tactite . Johnson, 1958 . quartz veins . Newman and oth- ers, 1950 8. Oreana mine, Humboldt Range . 40°24' 118°15' . Scheelite and beryl in pegmatitic 27 . Gardnerville (Eagle) district . 38°52' 119°34' vein . Kerr, 1938 . Selfeelite in tactite . Overton, 1947 . 9. Nightingale district. (Alpine, 40°01' 119°14' MGL, and Nightingale mines) . 28 . Gabbs area (Victory, El Capitan 38°58' 117°55' Scheelite in tactite. Smith and mines) . Scheelite in sheared and Guild, 1942 . (For Nightingale feldspathized granodiorite . Hu- mine .) mphrey and Wyatt, 1958 ; Vital- iano and others, 1957 10 . Ragged Top . Scheelite intactite . 40°03' 118°48' . 11 . St . Anthony mine . Scheelite in 39°59' 118°42' 29 . Silver Dyke mine . Scheelite in 38°19' 118°12' composite quartz vein that cuts tactite . diorite, Triassic volcanic rocks . 12 . Long lease . Scheelite in tactite . 40°05' 118°23' Kerr, 1936 . 13 . Battle Creek mine . Scheelite 40°30' 115°23' 30. Pilot Mountains. Scheelite in 38°20" "118°53' with a little quartz and pyrite tactite . in 2 small lenses of chlorite 31 . Black Horse mine . Scheelite in schist surrounded by granite and 38°01' 118°07' pegmatite . Granger and others, tactite . 1957 . 32. Tem Piute district. Scheelite in 37°38' 115°38' 14 . Star (Ogilvie, Harrison Pass) . 40°19' 115°28' tactite . Binyon and others, 1950. Scheelite in tactite . Granger and 33. Oak Springs district . Scheelite 37°14' 116°03' others, 1957 . in tactite . Johnson and Hibbard, 15 . Hilltop mine . Scheelite in tac- 39°41' 117°43' 1957 . tite . 34 . Flat Creek (Mountain Queen) . 41°43'` 117°38' 16 . Sand Springs district . Scheelite 39°16' 118°21' Scheelite in gold-quartz veins . in tactite . 35. Santa Rosa Mountains . Scheelite 41°21' 117°38' in tactite . 17 . Rawhide district (Nevada Sche- 39°02' 118°19' elite ; Leonard mine). Scheelite 36. Charleston Hill National . Sche- 41°22' 117°41' in tactite. Geehan andTrengove, elite in gold-quartz veins . 1950 . 37 . Pasch . Scheelite in gold-quartz 41°11' 117°47' 18 . Linka mine . Scheelite in tactite . 39°19' 116°50' veins . 19 . Bay State mine. Scheelite in 39°32' 115°48' 38. Dutch Flat. Scheelite, cinnabar, 41°10' 117°30' quartz veins in Devonian lime- and gold in low-grade placer . stone . Willden and Hotz, 1955 . 20. Monte Cristo deposits . Scheelite 39°14' 115°34' 39 . New Chance (Stevens), Coon 41°48' 115°29' in tactite. Creek (Madden), and Batholith 21. Cherry Creek district (Ticup 39°56' 114°55' (White Star Tungsten mines) . Scheelite in tactite . mine and others). Scheelite, qua- rtz, and calcite as brecciapipes 40. Robinette (June group) . Scheelite 41°53' 115°04' in Cambrian limestone . Holmes, and molybdenite in tactite . 1950 . 41 . Mt . Diablo . Scheelite . 41°01' 114°58' 22. Antelope claims . Scheelite in 39°45' X14°17' 42. Nash-Wharton . Scheelite in tac- thin quartz veins. 40°52' 119°31' 13 tite . Locality Index (cont"d .) NEVADA (cont'd .) NEVADA ( cont 'd .') gold placers . 43 . Arcturus , Scheelite in tactile . 40°42' 119°13' 6ha . Black Rock . Tungsten-bearing 401'°40' 116°1O' 44 . Jeakins . Scheelite in tactite . 40°29' 117°17' manganese oxide veins ; inand- esite . 45. Thrasher . Scheelite in tactite . 40°28' 114°1"' ()7 . Owl )Vallet~ Viewi, Schcelite in 40°20 11S°29 46. Margrave -Maher . Scheelite in 40°Ll'4' 114°16' tactite . tactite. b8 . Atlantic Claim, Spruce n1oun- 40°34' 114°48' 47. White Blowout . Scheelite in tac- 3q°S6' 119"17' taro district . Scheeliteatcontact tite . of limestone and quartz mon- zonite dike . 48, Star . Scheelite in tactite , 40°01' 1IU°0T' . Silver Zone Pass . Scheelite in 49 . Three prospects . Scheelite in 118°5" C9 ~Ci°55' 914°1C' tactite . quartz veins, 50 . Hilltop , Scheelite in tactite , .ld°30r 118°50 Lii . Epidote, Scheelite in tactite . 4-1°19' 114°i d' . Kinsley district . Scheelite in 51 . Scheelite , Seven Troughs Range . 40°23' 118°49' 1 4C°i-i8' 114°20' Scheelite in pegmatite . tactile . 52. Black Canyon (Esther ). Scheelite 10°21' 118°'31' 72. Keller-Stuart, Scheelite in tac- 3a°44' 119°32' in tactile, tile . 3. 'Juadsvvorth 53. Lone Mountain ( Baker) . Sche- 40°1P 118°33' . Scheelite in tacrite, 3u°3 6' 11402 1" elite disseminated in granite ?4. Pearl Harbor . Scheelite in tae- 3q°2Ci' 11Q°28' along fractures and quartz vein- Cite . lets, 75. Churchill Butte . Scheelite in tae- 3!3°21' I14°1-' 54. Snowstorm . Scheelite in tactile 40°Q8' 118°33' tite, pods in hornfels . 76. Capitol . Scheelite in tactile . 30012' 119°40' 55, Granite Point . A little scheelite 40'°00' 118°36' within 1 to S inches of aplite 7. Dixon . Tungsten-bearing man- 3G°10' 11'9°3,' sill in limy shale, ganese oxides in rhvolite tuff . . McTarnahan 110ll 56 . Allied Tungsten , Inc . Scheelite 40°20' 118°14' 8 . Scheelite in 34°Ci6' 119°40' disseminated in quartz stri- tactile, ngers . 79 . Iowa Canyon, Scheclite in tic- 34°5L 116'°56' 57 . Arizona . Narrow rich streaks of 40°20' 118°09' tile . scheelite in part of a quartz 80 . Grass Valley, Scheelite in tae- 34°42' 11 r'47' vein formerly worked for silver, tile .

58. Panther Canyon . Scheelite in 40°27' 118"14' 81 . T-Bone . Scheelite in tactite, 3C)12' 2, 11-°03' thin quartz veins . 8'2 . Black Rock (Angelo Belli mine) . 34°26' 11h'°lo' 59. Hebbard (Sunny Boy) . Scheelite 4(532' ll8°14' Scheelite in quartz-calcite vein, in quartz . in dolomitic limestone . 60. Lakeview. Scheelite with mica, 40°3T' 118°12' 83 . Bald Mountain {Pees and Munt- fluorite, and beryl in pegmat - er} . Scheelite in tactite . )tic quartz pockets in altered 84 limestone . . Taylor mine, Ely district . Sche- 39°lo' 1 1 MOl elite in copper ore in shale . 61. East Range tungsten -manga- 40°512' 117°77' 8,:~ Little nese . Tungsten - bearing manga - . Little Flower, Scheelite with 3q"4-1' 114°3~' nese oxides in calcite veins in oxidizeded silver, lead, and man- shale, ganese minerals in a fault bet- tveen quartzite and limestone . 62 . Drag Ore . Scheelite in calcite 40°34' 117'°2$' gi, veins in shaly limestone . . Kolchek mine l(leve Creek) . 3q"1-1' 11§°3-' Scheelite in quartz . r 63 . True American , Scheelite in 4 4Cl°2b' 117°25' S7 Grand View Scheelite thin lenses of silicified lime- in sili - 3q°22' 114°18' stone cut by many mineralized cified limestone, with veinlet of quartz, calcite, and galena quartz veins . . . Sacramento Pass 64. Dixie . Scheelite with silver min- 40°p5' 117°4o' 88 . Scheelite and 30°10' 114°2'2' erals in calcite veins, quartz in limestone . 89, Black Horse . in qua- 65. Gold Acres . Scheelite in tactite . 40°I=" 110°4,' Scheelire 39°QQ' 114°l9' rtz veins. 66. Mill Gulch . A little scheelite in 40°19^ 116°41' 14 Locality Index (cont'd.) NEVADA (cont'd .) NEVADA (cont'd.) rtz vein, with leuchtenbergite . Kerr and Callaghan, 1935 90. Dirty Shirt . Scheelite in quartz 39°04' 114°24' . vein in Prospect Mountain qua- 111 . Scheebar . Scheelite and cinna- 38°49' 117°49' rtzite . bar in limestone . Bailey and Phoenix, 1944 . 91 . Black Mule . Scheelite in a pipe- 39°03' 114°25' like ore shoot in limestone bed 112 . Millett. Scheelite in tactite . 39°01' 117°14' of Pioche shale . 113 . Round Mountain. Huebnerite, 92 . Lane Tilford . Scheelite in qua- 39°03' 114°22' flurite, muscovite, and a lit- 38°41' 117°03' rtz veins in granite, tle tetrahedrite in narrow qua- 99 . Taylor . Scheelite in quartz-cal- 38°54' 114°15' rtz veins in granite . cite gangue in limestone, 114 . Spanish Spring . Huebnerite in 38°28' 117°01' quartz veins cutting granite 94. Snake Creek (Bonita) . Scheelite 38°54' 114°10' . in narrow quartz veins in Cam- 115 . Tonopah Pegleg . Scheelite in 38°10' 117°13' brian shale and quartzite . tactite . 95. Lexington Canyon (Bonanzy) . 38°51' 114°12' 116 . Tonopah district . Small a- 38°04' 117°13' Scheelite in calcite veins in mounts of wolframite and sche- limestone, elite in silver-bearing veins . Bastin and Laney, 1918 . 96. Deer Trail (Georgie W .). Hue- 38°43' 114°28' bnerite and some scheelite in 117 . Sylvania district . Huebnerite in 37°25' 117°45' quartz vein in Prospect Moun- 2 veins ; scheelite in tactite . tain quartzite . 118 . Grand Junction. Scheelite and 36°48' 116°44' 97 . Cinch . Scheelite in brecciated 38°36' 114°41' wolframite in vein in quartzite . quartz . 119 . Comet, Wolframitewithgalena, 37°53' 114°37' 97a. Hulse. Tungsten-bearing psi- 38°24' 114°19' sphalerite, pyrite, and plum- lomelane ; in vein. Hewett and bojarosite in quartz vein . West- Fleischer, 1960 . gate and Knopf, 1932 . 98 . Coleville area (Sweetwater Min- 38°37' 119°25' 120, Mesquite (Deer Trail ; Cabin 36°38' 114°05' ing Co.). Scheelite in tactite. Canyon, Silver Leaf) . Scheelite in amphibole-rich layers or in 99. Cowboy. Scheelite in tactite, 38°38' 119°10' quartz veins and pegmatite, in 100. Lucky Four . Scheelite in 38°48' 118°36' Precambrian schistandgneiss . tactite . NEW HAMPSHIRE 101 . Midnight (Bell Flat) . 39°06' 118°12' ° . Jackson 102 . Pamlico (Silver Star) . Scheelite 38°30' ll8.°29' 1 . Wolframite and cas- 44°09' 7,1°ll' in tactite . siierite in veins . Sanford and Stone, 1914 . 103 . Bataan, Mabel, andMollie . Sch- 38°27' 118°19' eelite in tactite . 2. North Groton, Wolframite inpeg- 43°45' 71°51' matite . Hess, 1921 . 104 . Christine . Scheelite with oxi- 38°28' 118°01' dized silver, lead, and copper NEW MEXICO minerals in a vein in marble and lime silicate rock . 1 . Elizabethtown. Minor ferberite in 36°36' ` 105°15' veins near border of intrusive 105. Black Jack (Sodaville) . Small 38°21' 118°06' porphyry body . Ray and Smith, veins in tungsten-bearing man- 1941, ganese oxides . 2. Picuris district. Wolframite in 36°10' 105°41' 106. Marietta district . Scheelite in 38°13' 118°26' quartz veins . Lasky and Wootton, tactite ; scheelite-wolframite 1933 . vein with beryl . 3. El Porvenir district . Scheelite 35°44' 105°25' 107 . Queen. Scheelite in tactite . 37°57' 118°25' and ferberite in small amounts 108 . Half Moon and Rock Hill, Sche- 38°10' 117°58' with molybdenite in quartz-peg- matite elite in tactite and hornfels, . Lasky and Wootton, 1933 . . Cunningham Hill deposits 109 . Ellsworth . Huebnerite and 38°58' 117°46' 4 . Sche- 35°20` 106°06' some s alitto in quartzveins. elite in fractures in breccia of Type locality for mineral hue - quartz monzonite and sandstone . bnerite . Anderson, 1954 . 110 . Betty O'Neil. Scheelite in qua- 38°52' 117°53' 5. San Pedro mine . Scheelite in 35°14' 106°ll' 15 Locality Index (eont'd .) NEW MEXICO (cont'd .' NEW MEXICO (cont'd .) n in silicified amphibolite xeno- lith in granite tactite in old copper mines . And- . Dale and Mc- erson, 1954 ; Smith, Cooper, and Kinney, 1959 . others, 1945 . 13, Bounds Ranch Prospect . Sche- 32°2 3' 108°26' 6. White Oaks district . Wolframite 33°45' 105°4S' elite in tactite . in quartz veins in gold mines in 16 . Victorio Mountains . Minor sche- 32°lP 108°06' monzonite intrusive body . Ellis, elite in thin tactite bed, and 1929 . some Wolf ramite in quartz veins . 6a. Reinhart . Tungsten-bearingpsi- 3 .3°53' 10-°29' 17 . Granite Gap . Scheelite intact ite . 32"(',15' 1 08" S W lomelane veins ; in Tertiary agglomerate . Hewett and Fleis- 18 . Little Hatchet Mountains . Minor 31° ' 108°26' cher, 1960. scheelite in quartz-sulfide veins in metamorphosed sedimentary 6b . Cliffside . Tungsten-bearing hol- 34°01' 10?°0S' rocks . Lasky, 194", landite ; in Tertiary rhyolite . Hewett and Fleischer, 1960, 10 . Apache group . Some tungsten in 31°44' 108°1 0 ' copper-bearing tactito . 6c . Carretas . Tungsten-bearing co- 33°59' 106°53' ronadite ; in Tertiary rhyolAte 20 . Eagle Point deposits . Scheelite 31'°46' 108026' porphyry. Hewett and Fleischer, in tactile at limestone-granite 1960 . contact . Laskv, 1947 .

7 . Grandview Canyon . Scheelite with 32°59' 106°34' 21 . Hoggett manganese deposits . 31°44' 108°42' bismuth minerals in quartz near Tungsten in psilomelane ore in granite contact . Lasky, 19'32 . veins cutting rhyolite porphyry, in grades ranging up to 1 per- 8. Merrimac mine . Scheelite in tac- 3'2°27' 106°26' cent W03, tite worked principally for zinc . 21a Dale and McKinney, 1959 . . Peace . Tungsten-bearing psi- 31°36' 108°47' lomelane, hollandite, andcryp- 8a. Rockhouse . Tungsten-bearing 33°06' ICI?°15' tomelane ; vein in Tertiarv rhy- psilomelane ; veins inlimestone. olite porphyry . Hewett and Fle- Hewett and Fleischer, 1960 . ischer, 1960 . 8b. Manganese Hill . Tungsten-bear- 32°52 ' 107'17' ing psilomelane ; vein in lime- NORTH CAROLINA stone . Hewett and Fleischer, 1 . Hamme district . Huehnerite and 36°31' 78°'28' 1960 . some scheelite in quartz veins 8c. Jones-Reiland . Tungsten-bear- 32°ao' 10,°l5' in granite and schist . Espenshade, ing psilomelane ; vein in lime- 104- ; Sweet, 1964 ; Bishop, 1948, stone . Hewett and Fleischer, 2 . Cline mine . Some scheelite with 35°29' 80°29' 1960 . chalcopyrite, hematite, and sid- erite in a quartz vein 8d . Velarde . Tungsten-bearing psi- 32°43' 10710' . Hickman, 1948 . lomelane ; vein inTertiary rhyo- lite . Hewett and Fleischer, 1960 . 3 . Phoenix mine (includes Furniss) . 3S°20' 80_7 30' Some scheelite in a quartz vein 9. Iron Mountain district . Scheelite 33°28' 10,°34' in tactite , some of which contains formerly mined for gold . Jones helvite . Jahns, 1944 . and Peyton, 1950 ; Bell, 1960 .

10. Silver Queen group . Sparse 32°55' 107-15' OREGON scheelite in fault zone in vol- canic rocks and limestone . Dale 1 . Metzger property. Sparsely dis- 4,5'20' 11-°23' and McKinney, 1959 . seminated molvhdenite and some scheelite exposed in an open cut 11 . Berenda Creek prospects . Sche- 32'47' 177°44' on contact between marble and elite in quartz veins . granodiorite . Wolfe and White, . 12 . Central district . Tungsten in 32°49' 108007' 19 1 oxidized iron-manganese veins . la . Le Gore Prospect . Volvbdenite, 45°19' 117023' Dale and McKinney, 19 ;9. pvrite, chalcopyrite, minor sp- 13 . Bullard Peak area . Scheelite 32°40' 10'3'°3C}' halerite, traces of scheelite in in pegmatite and related quartz tactile a few inches to 20 feet veins in gneiss and schist . Dale wide, between granodiorite and limestone and McKinney, 1959 . . Smith, Allen, and oth- ers, 1941 . Wolfe and White, 1951 . 14 . Rice-Graves deposit . Scheelite 3'2°31x' 108'33' y Sy ilmot' property :Matterhorn 45'16' 117°20 1 { Locality Index (cont'd .) RHODE ISLAND OREGON (cont'd .) 1. Copper Mine Hill . Scattered sche- 42°00' 71°27' elite in schist and limestone, group) . Sparsely disseminated molybdenite, pyrite, chalcopy- associated with magnetite, gar- rite, and scheelite intactitecom- net, tremolite, chlorite, epidote, chalcopyrite, and molybdenite . posed of garnet, epidote, calcite , Quinn and Young, 1937 ; Quinn and quartz. Smith, Allen, and others, 1941 ; Wolfe and White, and others, 1948 . 1951 . SOUTH DAKOTA 3. Frasier . Some scheelite and mol- 45°10' 117°18' 1 . Lead district . Wolframite-hue- 44°20" 103°42' ybdenite in garnet tactite sur- rounded by quartz diorite . Hess bnerite , and minor scheelite , in small , high-grade replacement and Larsen, 1922 ; Wolfe and White, 1951 . bodies in dolomite of the Dead- wood (Cambrian) formation, a 4. Davis tungsten prospect. Trace 45°00' 118°07' short distance above the Pre- of scheelite in minute fractures cambrian . Also in silicified rhyo- in coarsely crystalline white lite . Connolly and O'Harra, 1929 ; limestone near contact with gre- Hess, 1908 ; Irving, 1901 ; and enstone . Wolfe and White, 1951 . Runner and Hartmann, 1918 . 5. Cliff and Flagstaff mines . Some 44°51' 117°43' 2 . Hill City district. Wolframite in 43°55' 103°34' scheelite in gold-bearing quartz pegmatites in quartz veins . Con- veins in altered gabbro andhorn- nolly and O'Harra, 1929 ; Hess, blende diorite . Gilluly, 1937 ; Lin- 1908 ; Runner and Hartmann, 1918 . dgren, 1901 ; Wolfe and White, 3. Spokane district 1951 . . Wolframite and 43°51' 103°25' scheelite in quartz veins . Runner 6. Pleasant Valley. Stephens group . 44°43' 117°37' and Hartmann, 1918 . Tungsten in manganese oxides in argillite. Gilluly, 1937 ; Pardee, TEXAS 1922 . 1. Franklin Mountains . Wolframite 31°56' 106°28' 7. Chicken Creek prospects . Sche- 44°33' 117°20' with tin in quartz and greisen . elite (Weatherby) . Tungsten. Chi- 44°31' 117°20' Weed, 1901 . cken Creek (Hallock) . Meager 44°34' 117°l7' scheelite in quartz veins worked 2. Van Horn region . Wolframite with 31°26' 104°53' for gold, and in placers . Parks iron oxides in quartz . Richardson , 1914 . and Swartley, 1916 ; Wolfe and White, 1951 . 2a. Chispa . Tungsten-bearing psi- 31°43' 104°47' lomelane 8. Sylvanite mine. Scheelite in gold- 42°28' 122°02' . Hewett and Fleischer, quartz vein with a little galena 1960 . and much pyrite . Parks and Swar- 3 . Llano region. Scheelite intactite . 30°42' 98°43' tley, 1916 ; Wolfe and White, 1951 . Paige, 1912 ; Barnes and others, . 9. Lady Slipper, Lucky Strike, and 42°20' 123°09' 1942 Blue Star . Scheelite disseminated in metamorphosed limey layers UTAH in metavolcanic rocks along con- 1. Grouse Creek Range (Lone Pine 41°32' 113°47' tact with intrusives . Wolfe and and vicinity) . Scheelite in tactite . White, 1951 . 2. Alta district. Tungsten as 40°35' 111°38' 10 . Rattlesnake and Mocks Gulch 42°07' 123°12' tungstenite, stolzite, and sche- prospects. Scheelite and cinna- elite in sulfide veins ; as sche- bar in metavolcanic rocks . Wolfe elite in sulfide replacement and White, 1951 . bodies in limestone ; as scheelite in tactite ; and as scheelite in 11 . Mattern prospect. Scheelite in 42°09' 122°47' tactite . Wolfe'and White , 1951 . pyrite-sericite veinlets on joints and other fractures . Calkins and 12. Bratcher mine . Scheelite in tac- 42°06' 122°47' Butler, 1943 ; Crawford and Bur- tite enclosed in quartz diorite. anek, 1944 ; Sharp, 1958 . Wolfe and White, 1951 . 3. American Fork district. Sche- 40°30' 111°41' elite in tactite. Calkins and But- PENNSYLVANIA ler, 1943; Crawford andBuranek, 1. Hoffman's quarry . Scheelite in 40°Ol' 75°05' 1944 . hornblende gneiss . Bascom, 4. Stardust and vicinity . Scheelite 40°12' 113°52' Clark, Darton, and others, 1909 . 17 Locality Index (cont'd .) WASHINGTON (cont'd .) UTAH (cont'd.) 3 . Blue Grouse Mountain area . (Deer 48°06' 117°30" in tactite . Nolan, 1935 . Lake Tungsten Co ., Tungsten King, Harrison and others} . Hue- 5. Clifton area (Reaper and vici- 40°07' 113°50' bnerite in quartz veins in argil- nity) . Scheelite in pegmatitic lite and quartzite . Culver and pipes in quartz monzonite ; also in Broughton, 1945 ; Hunttin,g, 1956 . minor bodies in tactile and in quartz veins, some of which con- 4. Red Mountain (Royal Development 48°'06' 120°36' tain gold and bismuth, and or Co .) . A little scheelite with pvr- rhotite and chalcopyrite in a brec- copper . Nolan, 1935 . eiated zone between gneiss and 6. Hornet-Apex deposits . Scheelite 39°46' 113°54' diorite . Culver and Broughton, in fractures in amphibolite. 1945, 7. West Tintic district . Scheelite in 39°51' 112°25' 5 . Holden mine . Some scheelite in 4S°12' 120°46 limonitic veins in roof pendant garnet-epidote rock along foot- in granite, and to minor extent wall of sulfide zone . Culver and in tactite . Hobbs, 1945a ; String- Broughton, 1945, ham, 1942 ; Wilson, 1960. 6 . New Deal (Antimony Queen ; Dixie 48°12' 120'11' 8. House Range deposits . Scheelite 39°12' 113°24' Queen ; Ready ; Silver Seal). Sti- in tactite at several places around bnite, pyrite, and small amounts rim of granite body intruded into of scheelite in quartz veins . Cul- limestone, Gehman, 1958 . ver and Broughton, 1945 ; Huntt- ing, 1956 9. Ryan Creek prospect . Some sche- 38°53' 109°06' . elite with fluorite on fault between 7. Chelan . A few scheelite crystals 4B°06' 120°06' granite and sandstone . Dane, in 2 quartz veins . Culver and 1935 . Br oughton, 1945, 10. Louise deposit . Huebnerite in 3E°24' 112°33' 8. Metho%v, Golden Eagle, Highland 48°06' 120°02' quartz stringers in prophyry . Mining and Milling Co ., Holden- Butler and others, 1920. Campbell, New London, Wash- 11 . Mineral Mountains deposits 38°21' 112°48' ington, Oregon, and Idaho mines (Daily Metal and others) . Sche- and claims . Scheelite with pyrite, elite in tactite ; several deposits chalcopyrite, gold, and silver in quartz veins or occurrences . Hobbs, 1945b . . Culver and Brough- ton, 1945 . 12 . Milford deposits (Old Hickory 38°2 i" 113°04' and others). Scheelite in tac- 9 . Seneff (Dutch John), Sherwood, 48°12' 120°03' tite, in part in deposits worked and Lodge. Scheelite in tactite . earlier for copper and iron . 10. Minnie . Scheelite sparsely scat- 48°l6' 120°03' Hobbs, 1945b . tered through 3-foot quartz vein . 13. Cupric Mine . Scheelite in tactite 38°2'3' 113°19' Culver and Broughton, 194,7 . at places in old copper mine. 11 . Hatfield (Cathedral Peak, Tang- 48°SS' 120"0-' Hobbs, 1945b . sten Mountain, Tungsten Peak, Wolfremite Mountains, Zell- 14 . Beaver Dam Mountains . Sche- 37°09' 113°S3' elite in gneiss . weger and others ; . Wolframite, some scheelite, and pyrite, ir- VIRGINIA regularly distributed in a quartz vein I to 18 inches thick at 1 . Irish Creek . Some wolframite and 3T°52' ?9°13' intervals of about 1 .5 miles . scheelite in tin deposits . Fergu- 12 . Four Metals and Kaaba son, 1918 ; Koschmann and others, . Sche- 44'°5T' 119°39' 1942 . elite irregularly distributed in quartz veins ,vith galena, chal- copyrite, and sphalerite . WASHINGTON 1 . Tungsten Mines , Inc . (Washington 48°t3' 118°04' 13 . Forty-ninth parallel, 0 . K . Cop- 48°54' 119"29' Metals ). Scheelite andwolframite per, and Golden Chariot . Sche- in a quartz vein in granite . Cul- elite, molybdenite, chalcopvrite, and pyrite in quartz veins, Cul- ver and Broughton , 1945 ; Huntt- ver and Broughton, 1945, ing, 1956. 14 . Moncosilgo . Occasional sche- 48°5-' 119°'2T 2, Germania district . Wolframite in 48°01' 118°06' quartz veins. Culver and Brough- elite in fractures in diorite lined ton, 1945 ; Huntting, 1956 . with copper, cuprite, chalcopv- rite, molybdenite, and pyrite .

18 Locality Index (cont'd.) WASHINGTON (cont'd .) WASHINGTON (cont'd .) 1945 ; Huntting, 1956 ; Pardee, Culver and Broughton, 1945 . 1918 . 15 . Starr . Trace scheelite with py- 48°43' 119°35' 29 . Silver Leaf and Orion . A little 48°14' 118°12' rite and molybdenite in quartz scheelite in narrow quartz veins . lenses . Culver and Broughton, Culver and Broughton, 1945 ; Pardee, 1918 . 1945 . 16. Gubser, Lady of the Lake, and 48°34' 119°45' 30. Black Horse (Stockwell ). Wol- 48°13' 118°08' framite in narrow quartz vein Silver King (Lone Star) . Sche- . elite with pyrite, galena, and Patty and Glover, 1921 . sphalerite in quartz veins . Cul- 31 . Daisy-Tempest (Silverado Min- 48°23' , 118°05' ver and Broughton, 1945 . ing Co . ). A little scheelite and chalcopyrite, with more abun- 17 . Tonasket . Scattered huebnerite 48°38' 119°30' in a narrow quartz vein . Handy, dant sphalerite , galena, arseno- pyrite, and pyrite in quartz 1916. veins . 18. Monse. Scheelite in garnet tac- 48°18' 119°35' 32. Red Top and Boundary Silver tite . Huntting, 1956 . 48°56'" 117°34' and Lead (Lucile) . Scheelite in 19 . Crawfish Lake (Windiate- 48°29' 119°09' quartz stringers and in Pb-Zn Auberton property) . Scheelite in ore . tactite . 33. Magma. Scheelite and molyb- 48°46' 117°38' 20. Strawberry Lake . Some sche- 48°58' 119°05' denite in garnet-diopside rock . elite in magnetite-pyrite-garnet 34 . Little Noisy. Scheelite with py- 48°48' 117°16' rock. Culver and Broughton, 1945. rite and a little sphalerite in vein quartz . 21. Magnetic (Neutral) and Roose- 48°58' 118°59' velt . Scheelite in tactite . Cul- 35. June-Echo (Western Molyb - 48°18' 117°41' denum Co.). , ver and Broughton, 1945 . Scheelite molyb- denite, pyrite, chalcopyrite in a 22. Crystal Butte . Scheelite with 48°55' 119°00' quartz vein in marble and mon- pyrite, pyrrhotite, magnetite, zorlite . and chalcopyrite in altered qua- . Mint (Iowa). rtzite and argillite . Culver and 36 Small amounts of 47°59' 121°30' Broughton, 1945 . scheelite, powellite , and sulfides in quartz veins cutting quartz 23. Kelly . Scheelite in tactite . 48°49' 118°50' diorite . Culver and Broughton 24. Morning Star . Sparse scheelite 48°58' 118°31' 1945 . in quartz vein with gold-bearing 37. Kromona . Trace of scheelite 47°55' 121°36' pyrite and free gold . Culver with abundant sulfides in nar- and Broughton, 1945 . row quartz veins in quartz dio- 25 . Big Iron. Minor scheelite and 48°57' 118°03' rite. Culver and Broughton, chalcopyrite, with abundant py- 1945 . rite, pyrrhotite, and magnetite, 38. Culver Gulch . A little scheelite , 47°26' 120°40' in altered quartzite and lime- gold, pyrite , arsenopyrite, chal- stone. Bancroft, 1914 ; Culver copyrite , galena, and stibnite in and Broughton, 1945 ; Weaver, 3 veins composed largely of 1911. quartz, calcite , and talc . Culver 26 . Surprise . Scheelite in tactite . 48°39' 118°29' and Broughton , 1945 ; Weaver, 1911 . 27. Addison (Pacific Mutual Silver 48°06' 118°35' and Lead Co .). Wolframite and 39. Silver Hill . Scheelite and wol- 47°33' 117°20' framite in quartz pegmatite and a little scheelite with chalcopy- rite, galena, sphalerite, and oth- 8 small quartz veins ; associated er minerals in quartz vein . Cul- with cassiterite pegmatite . ver and Broughton, 1945 ; Huntt- Page, 1942 . ing, 1956 ; Patty and Glover, 40. Copper Mining Co . (Cascadia , 46°48' <'121°2l' 1921 . Northwest Tungsten Co .). Sche- elite, quartz , chalcopyrite, ar- 28. Gwin . A little wolframite in 2 48°18' 118°14' quartz veins containing pyrite senopyrite , and a little molyb- and freibergite and mined for denite in shear zone in grano- silver . Culver and Broughton diorite .

19 Locality Index (cont'd .) References Cited (cont'd . WYOMING Jr ., 1955, Geology and ore deposits of the Bagdad area, Yavapai County, Arizona : U .S . . Nigger Hill tin deposits . Wol- 44°22' 104°04` 1 Geol . Survey Prof . Paper 278 . framite in tin-bearing pegmati- tic granite . Darton, 1905 ; Irving, Anderson, E . C ., 1954, The metal resources of New 1904 . Mexico and their economic features through 1954 : New Mexico Bur . Mines and Mineral Resources 2. Mosaic claim . Scheelite and a 44°38' 10T°19' Bull . 39 . little wolframite in sulfide and gold-bearing quartz streaks in Armstrong, F . C ., 194 .5, Preliminary report on the gneiss . Osterwald and Osterwald, geology of the Atlantic City-South Pass mining 1952 . district, Wyoming : U.S . Geol . Survey open-file report . 3. Sunlight District. Wolframite in 44°39' 109°44' pyritic silver -quartz vein . Par- Auerbach, H . S ., 1903, Tungsten ore deposits of the sons, 1937 . Coeur d'Alene : Eng . Mining Jour., v . 86, p . 1146- 1148 . 4. Durner and Keys deposit . Sche- 43°29' 10'%°14' elite in massive quartz lenses in Bailey, E . H ., and Phoenix, U . A ., 1'944, Quicksilver schist . Osterwald and Osterwald, deposits in Nevada : Nevada Univ . Bull ., v . 38, 1952 . no . 5, Geology and Mining ser . 41, p . 140-41 . 5. Copper Mountain deposits . Sche- 43°25' 108°01' Bancroft, Howland, 1914, The ore deposits of north- elite in Precambrian calc-sili- eastern Washington : U .S . Geol. Survey Bull . 550 . cate gneiss . Frey and W ilson, Barnes, V . E ., Parkinson, G . A ., and Warren, L . E ., 1950 ; Hobbs, 1943 . 1942, Scheelite in Llano County, Texas : Texas 6. Brantford (Mormon Canyonj pro- 42°'44' 10,5'50, Univ ., Bur, Econ . Geology, Mineral Resources spect . Scheelite in Precambrian Circ . 20 . calc-silicate gneiss . Osterwald Barrell, Joseph, 1907, Geology of the Marysville and Osterwald , 1952, Spencer, mining district, Montana : U .S . Geol . Survey Prof . 1916. Paper ~, 7 . 7 . Strong mine . Scheelite in cop- 41°23' 105°22' Bascom, Florence, Clark, W . B ., Darton, N . H ., and per-quartz -feldspar vein in anor- others, 1909, Description of the Philadelphia dis- Newhouse and Hagner, thosite . trict [Pennsylvania-New Jersey-Delaware7 : U .S . 1957 . Geol . Survey Geol . Atlas, Folio 162 . 8. Atlantic City deposits . Scheelite 42°32' 108°43' Bastin, F_ . S ., and Laney, F . B ., 1p1 8 , The genesis of in gold-quartz veins in Precam- the ores at Tonopah, Nevada : U .S . Geol . Survey . Spencer, 1916 . briangneiss Prof. Paper 104, p . 19, . South Pass mines . Scheelite in 42'°2S' 108°49' 9 Bateman, P . C ., 1956, Economic geology of the quartz veinlets in Precambrian Bishop tungsten district, California : California gneiss . Armstrong, 1945 . Div . Mines Spec . Rept . 47 . 10. Lewiston District . Scheelite in 42°26' 108°29' Bateman, P . C ., Erickson, M. P ., and Proctor, P . El ., gold-quartz veins . Osterwald 1950, Geology and tungsten deposits of the Tung- . and Osterwald, 1952 sten Hills, Inyo County, California : California 11 . Burr Claim and others . Scheelite 42°21' 108°31' Jour . Mines and Geology, v . 46, no . 1, p . 23-42 . in gold-quartz veins . Spencer, Bateman, P . C ., and Irwin, W . P ., 1954, Tungsten in 1916 . southeastern California, in Geology of Southern California : California Div . Mines, Bull . 1-0, References Cited Chap . 8, p . 31-39 . Anderson, A . L., 1929, Geology and ore deposits of the Bell, Henry, III, 1960, A synthesis of geologic work Lava Creek district, Idaho : Idaho Bur, Mines and in the Concord area, North Carolina, in U.S . Geology Pamph . 32 . Geological Survey, Short papers in the geo- , 1939, Geology and ore deposits of the logical sciences : U .S . Geol . Survey Prof . Paper Atlanta district, Elmore County, Idaho : Idaho Bur . 400-B, art . 84, p . B-189 - B-191 . Mines and Geology Pamph. 49 . Belser, Carl, 1956a, Tungsten potential in the San , 1940, Geology and metalliferous de- Juan area, Ouray, San Juan, and San Miguel posits of Kootenai County, Idaho : Idaho Bur . Counties, Colorado : U .S . Bur . Mines Inf . Circ . Mines and Geology Pamph . 53 . 7731 . 1948, Tungsten mineralization at the , 19SOh, Tungsten potential in Chaffee, Ima Mine, Blue Wing district, Lemhi County, Freemont, Gunnison, Lake, Larimer, Park, and Idaho : Econ . Geology, v. 43, no. 3, p . 181-206 . Summit Counties, Colorado : U.S . Bur. Mines Inf . Circ . 7748 . Anderson, C. A., Scholz, E. A ., and Strobell, J . D ., 20 References Cited (cont'd .) Geol . Survey Bull . 863 . Binyon, E . 0 ., Holmes, G . H ., Jr ., and Johnson, A . C . Darton, N. H., 1905, Description of the Sundance 1950, Investigation of the Tem Piute Tungsten quadrangle [Wyoming-South Dakota] : U .S . Geol . deposit, Lincoln County, Nevada : U .S . Bur . Mines Survey Geol. Atlas, Folio 127 . Rept . Inv . 4626 . Dibblee, T . W ., Jr., and Chesterman, C . 'W ., 1953, Bishop, F . H., 1948, North Carolina tungsten : Mining Geology of the Breckenridge Mountain quadrangle, Cong. Jour ., v. 34, no. 9, p . 77-82 . California : California Div . Mines Bull . 168 . Burbank, W . S ., 1932, Geology and ore deposits of the Dings, M . G., and Robinson, C . S ., 1957, Geology and Bonanza mining district, Colorado : U.S . Geol. ore deposits of the Garfield quadrangle, Colorado : Survey Prof. Paper 169 . U.S . Geol . Survey Prof . Paper 289 . Burbank, W . S ., Eckel, E . B., and Varnes, D . J ., Ellis, R . W., 1929, New Mexico mineral deposits 1947, The San Juan Region, in Vanderwilt, J . W ., except fuels : Univ. New Mexico Bull ., Geol . Mineral Resources of Colorado : Colorado Mineral Ser ., v . 4, no . 2 . Resources Board, p . 396-439 . Emmons, S . F ., Irving, J . D ., and Loughlin, G. F ., Butler, B . S ., Loughlin, G . F ., Heikes, V . C ., and 1927, Geology and ore deposits of the Leadville others, 1920, The ore deposits of Utah : U.S . mining district, Colorado : U.S . Geol. Survey Geol . Survey Prof . Paper 111 . Prof . Paper 148 . Calkins, F . C ., and Butler, B . S ., 1943, Geology and Emmons, W . H ., and Calkins, F . C ., 1913, Geology ore deposits of the Cottonwood-American Fork and ore deposits of the Philipsburg quadrangle, area, Utah : U .S . Geol . Survey Prof. Paper 201. Montana : U.S . Geol . Survey Prof . Paper 78 . Calkins, F . C., and MacDonald, D . F., 1909, A Espenshade, G . H ., 1947, Tungsten deposits of Vance geological reconnaissance in northern Idaho and County, North Carolina, and Mecklenburg County, northwestern Montana : U.S . Geol . Survey Bull . Virginia : U .S . Geol . Survey Bull . 948-A . 384 . Farmin, Rollin, 1941, Occurrence of scheelite in Callaghan, Eugene, and Lemmon, D . M., 1941, Tung- Idaho-Maryland mines at Grass Valley, Cali- sten resources of the Blue Wing district, Lemhi fornia : California Jour. Mines and ' Geology, County, Idaho : U .S . Geol . Survey Bull . 931-A . v. 37, no. 2, p . 224 . Carpenter, L. G., and Garrett, D. E ., 1959, Tungsten Ferguson, H. G., 1918, Tin deposits near Irish in Searles Lake : Am . Inst. Mining Metall . Pet- Creek, Virginia : Virginia Geol . Survey, Bull . roleum Engineers Trans ., v. 214, p . 301-303 . XV-A, p . 7-8 . Clark, T . H ., and Carlson, D . W., 1956, Mines and Fisher, D . J., 1930, Huebnerite from Kendall, Mont- mineral resources of El Dorado County, Cali- ana : Am . Mineralogist, v . 15, no. 3, p. 104-108 . fornia : California Jour . Mines and Geology, Witch, R . S., and Loughlin, G v. 52, no . 4, p . 369-591 . . F ., 1916, Wolframite and scheelite at Leadville, Colorado : Econ . Geo- Colorado Metal Mining Fund Board, 1960, Tungsten logy, v . 2, p . 30-36 . mines of Colorado, Denver, 78 p . Frey, Eugene, and Wilson, S . R ., 1950, Investigation Connolly, J. P., and O'Harra, C. C., 1929, The of the Romur tungsten deposits, Fremont County, mineral wealth of the Black Hills : South Dakota Wyoming : U.S . Bur . Mines Rept . Inv. 4629 . School Mines Bull. 16 . Geehan, R . W., and Trengove, R . R ., 1950, Investi- Cook, E . F ., 1956, Tungsten deposits of south-central gation of Nevada Scheelite, Inc. deposit, Mineral Idaho : Idaho Bur . Mines and Geology Pamph . County, Nevada : U.S . Bur . Mines Rept . Inv . 108 . 4681 . Cooper, J . R ., 1951, Geology of the tungsten, anti- Gehman, H. M., Jr ., 1958, Notch Peak intrusive, mony, and gold deposits near Stibnite, Idaho : Millard County, Utah : Utah Geol. and Mineralog . U.S . Geol. Survey Bull. 969-F . Survey Bull . 62 . Crawford, A. L., and Buranek, A . M ., 1944, Tungsten Gianella, V. P ., 1938, Epithermal huebnerite from reserves discovered in the Cottonwood-American the Monitor district, Alpine County, California : Fork mining districts, Utah : Utah Univ . Eng. Econ . Geology, v . 33, p . 339-348 . Expt . Sta ., Bull . 24 . Gibson, Russell, 1948, Geology and ore deposits of Culver, H . E ., and Broughton, W . A ., 1945, Tungsten the Libby quadrangle, Montana : U.S . Geol . Survey resources of Washington : Washington Dept . Con- Bull . 956 . serv . Devel ., Div. of Geology Bull . 34 . Gilluly, James, 1937, Geology and mineral resources Dale, V . B ., and McKinney, W . A., 1959, Tungsten de- of the Baker quadrangle, Oregon : U.S . Geol . posits of New Mexico : U.S . Bur . Mines Rept . Survey Bull . 879 . Inv . 5517 . Goodwin, J . G ., 1958, Mines and mineral resources of Dane, C . H ., 1935, Geology of the Salt Valley anticline Tulare County, California : California Jour . Mines and adjacent areas, Grand County, Utah : U .S . and Geology, v . 54, no . 3, p. 317-492 . 21 References Cited (cont'd .) Holmes, G . H., Jr ., 1950, Inveytigation of Cherry Creek tungsten district, White Pine County, Granger, A . E ., Bell, M . A1 ., Simmons, G . C ., and Lee, Nevada : U .S . Bur, Mines Rept . Inv . 4631 . Florence, 1957, Geology and mineral resources of Elko County, Nevada : Nevada Bur . %lines Bull . Humphrey, F . L ., and Wyatt, Michael, 19SS, Sche- 54. elite in feldspathized granodiorite at the Victory mine, Gabbs, Nevada : Econ . Geology, v . 53, Gurlt, Adolf, 1894, On a remarkable deposit of wol- p . 38-64 . fram ore in the United States : Am . Inst . Mining Engineers, Trans . v . 22, p . 2'36-242 . Hundhausen, R . J., 1949, Investigation of Henderson Gulch tungsten deposit, Granite County, Mont- Hall, W . E ., and MacKevett, E . M ., 19 ;8, Economic ana : U .S . Bur . Mines Rept . Inv. 4513 . geology of the Darwin quadrangle, Inyo County, California : California Div . Mines Spec . Rent . 51 . Huntting, N9 . 1 ., 1956, Inventory of Washington Min- erals, pt . 2, Metallic Minerals : Washington Div . Handy, F. N ., 1916, An investigation of the mineral Mines and Geology Bull . 37 . deposits of northern Okanogan County : Washington State College Bull . 100 . Irving, J . D ., 1901, Some recently exploited deposits of wolframite in the Black Hills of South Dakota : Hazenbush, G . C., 1952, Geology of the Starhright Am . Inst . Mining Engineers Trans ., v . '31, p . tungst mine, San Bernardino County, California : 6S3-005 . California Jour . Mines and Geology, v . 4S, no . 3, p . 201-206 . 1904, Economic resources of the nor- thern Black Hills : U .S . Geol . Survey Prof. Paper Hess, F . L., 1908, Tin, tungsten, and tantalum de- 26 . posits of South Dakota : U .S . Geol . Survey Bull . 380. Jahns, R . H ., 1944, Beryllium and tungsten deposits of the Iron Mountain district, Sierra and Socorro 1917, Tungsten minerals and deposits : Counties, New Mexico : U .S . Geol . Survey Bull . U.S . Geol . Survey Bull . 652 . 94?-C . , 1921, Tungsten : U .S . Geol . Survey Johnson, A . C ., 1958, Exploration, development, and Mineral Resources U .S . for 191 ;', pt . 1, Metals, costs of the Stormy Day tungsten mine, Pershing p . 944 . County, Nevada : U .S . Bur . Mines Inf . Circ . Hess, F . L., and Larsen, E . S ., 1922, Contact-meta- 7854 . morphic tungsten deposits of the United States : Johnson, M . S ., and Hibbard, D . E ., 1957, Geology U.S . Geol . Survey Bull . 725-D. of the Atomic Energy Commission Nevada Pro- Hewett, D . F ., and Fleischer, Michael, 1960, Deposits ving Grounds area : U .S . Geol . Survey Bull . of the manganese oxides : Econ . Geology, v . 55, 1021-K . no. 1, p . I-55 . Johnston, W . D,, Jr ., 1940, The gold quartz veins of Hickman, R . C ., 1948 , Cline copper and tungsten mine, Grass Valley, California : U .S . Geol . Survey Cabarrus County, N . C . : U .S . Bur . Mines Rept . Prof. Paper 194 . Inv . 4203 . Jones, E . L ., 19'20, A reconnaissance of the Pine Hitchcock, C . H ., 1861, General report upon the Creek district, Idaho : U .S . Geol . Survey Bull . geology of Maine : Maine Board of Agriculture, 710 . 6th Ann . Rept ., p . 146-328 . ,Jones, J . 0 ., and Pevton, A . L ., 1950, Investigation Hobbs, S . W ., 1943, Tungsten deposits of Copper of Furniss tungsten deposits, Cabarrus County, Mountain, Fremont County, Wyoming : U .S . Geol . N . C . : U .S . Bur . %lines Rept . Inv, 4-24 . Survey Strategic Minerals Inv . Prelim . Map, Kelley, V . C ., 1946, Geology, ore deposits, and scale 1 :3,500 . mines of the Mineral Point, Poughkeepsie, and , 1944, Tungsten deposits in the Boriana Upper Uncompahgre districts, Ouray, San Juan, district and the Aquarius Range, Mohave County, and Hinsdale Counties, Colorado : Colorado Sci . Arizona : U .S . Geol . Survey Bull . 940-1 . Soc . Proc ., v . 14, no . 7 . , 1945a, Tungsten deposits in the West Kerr, P . F ., 1934, Geology of the tungsten deposits Tintic mining district, Juab County, Utah : U .S . near Mill City, Nevada : Nevada Univ . Bull ., Geol . Survey open-file report . v . 28, no . 2, 1945b, Tungsten deposits in Beaver , 1936, The tungsten mineralization at County, Utah : U .S . Geol . Survey Bull . 945-D . Silver Dyke, Nevada : Nevada Univ . Bull ., v . 30, no. . Hobbs, S . W ., and Clabaugh, S . E ., 1946, Tungsten deposits of the Osgood Range, Humboldt County, 1938, Tungsten mineralization at Ore- Nevada : Nevada Univ . Bull ., v . 40, no . ~, Geology ana, Nevada : Econ . Geology, v . 33, p . '390-427 . and Mining ser . 44 . 1940, Tungsten- bearing manganese de- Hobbs, W . H ., 1901, The old tungsten mine at Trumbull, posit at Golconda, Nevada : Geol . Soc . America Conn. : U.S . Geol . Survey 22 Ann . Rept ., pt . 2, Bull ., v . 51, p . 1359-1389 . p. 7-22 .

22 References Cited (cont'd.) Mining and Scientific Press, 1907, v. .95, p . 705 . Kerr, P . F. , 1946, Tungsten mineralization in the , 1915, v . 112, p . 567 . United States : Geol . Soc . America Mem . 15 . Mining World, 1955, v . 17, p . 38-43 . Kerr, P . F., and Callaghan, Eugene, 1935, Scheelite- Myers, W. B ., 1952, Geology and mineral deposits of leuchtenbergite vein in Paradise Range, Nevada : Geol . Soc . America Bull ., v. 46, no . 12, p . the northwest quarter of the Willis quadrangle and 1957-1974 . adjacent Brown's Lake area, Beaverhead County, Montana : U.S . Geol . Survey open-file° report . Kinkel, A . R ., Jr ., Hall, W . E., and Alberts, J ., . P Newhouse, W 1956 [1957], Geology and base-metal deposits . H ., and Hagner, A. F ., 1957, Geologic of West Shasta copper-zinc district, Shasta Co- map of anorthosite areas, southern part of Laramie Range, Wyoming unty, California: U.S . Geol . Survey Prof. Paper : U.S . Geol Survey 285 . Mineral Inv. Field Studies Map MF-119, scale 1:63,360, with text . Kirkham, V. R. D ., and Ellis, E . W., 1926, Geology Newman, E . W., Geehan, R . W ., and Trengove, R and ore deposits of Boundary County, Idaho : . R ., Idaho Bur . Mines and Geology Bull . 10 . 1950, Investigation of Tungsten Metals Corp . de- posits (Minerva Mining district), White Pine Knopf, Adolph, 1913, Ore deposits of the Helena County, Nevada : U .S . Bur . Mines Rept . Inv . 4648. mining region, Montana : U .S . Geol. Survey Bull . Newman, W . J 527 . ., 1957, Mining tungsten deposimby open pit methods pays at Getchell mine : Eng. Mining Koschmann, A . H., Glass, J. J ., and Vhay, J. S ., Jour ., v . 158, p . 90-93. 1942, Tin deposits of Irish Creek, Virginia : Nolan, T. B ., 1935, The Gold Hill mining district, Utah : U.S . Geol . Survey Bull. 936-K, p . 271-296 . U.S . Geol. Survey Prof. Paper 177 . Krauskopf, K . B ., 1953, Tungsten deposits of Madera, Osterwald, F . W., and Osterwald, D Fresno, and Tulare Counties, California : Cali- . B ., 1952, Wyoming mineral resources : Wyoming Geol . Survey Bull . fornia Div . Mines Spec . Rept . 35. 45 . Lasky, S. G., 1932, The ore deposits of Socorro Overton, T . D., 1947, Mineral resources of Douglas, County, New Mexico : New Mexico Bur . Mines and Mineral Resources Bull . 8 . Ormsby, and Washoe Counties : Nevada Univ . Bull ., v . 41, no . 9, Geology and Mining ser . 46 . 1947, Geology and ore deposits of the Little Hatchett Mountains, Hidalgo and Grant Page, L. R., 1942, Tin and tungsten deposits of Counties, New Mexico : U .S . Geol . Survey Prof. Silver Hill, Spokane County, Washington : U .S . Geol. Survey Bull. 931-H Paper 208 . . Lasky, S . G., and Wootton, T ., 1933, The metal Paige, Sidney, 1912, Description of Llano and Burnet . P quadrangles [Texas] resources of New Mexico and their economic : U.S. Geol. Survey Geol . Atlas, Folio 183 . features : New Mexico Bur . Mines and Mineral Resources Bull . 7 . Pardee, J. T ., 1918, Geology and mineral deposits of the Colville Indian Reservation . Geol Lemmon, D. M., and Dorr, J. V . N . 2d, 1940, Tungsten : U .S . Survey deposits of the Atolia district, San Bernardino and Bull . 677 . Kern Counties, California : U.S . Geol . Survey , 1922, Deposits of manganese ore in Bull. 922-H . Montana, Utah, Oregon, and Washington : U.S . Lindgren, Waldemar, 1901, The gold belt of the Blue Geol. Survey Bull . 725-C . Mountains of Oregon: U .S . Geol. Survey 22d Ann. Pardee, J . T ., and Schrader, F . C ., 1933, Metalli- Rept ., pt . 2, p . 725, 644 . ferous deposits of the greater Helena mining region, Montana : U.S . Geol . Survey Bull. 842 . Livingston, D . C., 1919, Tungsten, cinnabar, man- ganese, molybdenum, and tin deposits of Idaho : Parks, H. M., and Swartley, A . M., 1916, Handbook Univ . of Idaho School of Mines Bull . 2 . of the mining industry of Oregon : Oregon Bur . Mines and Geology, Mineral Resources of Oregon, Livingston, D . C ., and Laney, F . B ., 1920, The copper v. 2, p . 199 ; 219-220. deposits of the Seven Devils and adjacent districts : Idaho Bur . Mines and Geology Bull . 1 . Parsons, W . H., 1937, The ore deposits of the Sun- light mining region, Park County, Wyoming : Lovering, T. S ., and Goddard, E . N., 1950, Geology and Econ . Geology, v . 32, p . 832-854 . ore deposits of the Front Range, Colorado: U.S . Geol . Survey Prof . Paper 223 . Pattee, E . C ., 1960, Tungsten resources of Montana : Lovering, T. S ., and Tweto, Ogden, 1953, Geology and Deposits of the Mount Torrey batholith,'Beaver- head County ore deposits of the Boulder County tungsten dis- : U .S . Bur . Mines Rept. Inv . 5552 . trict, Colorado : U .S . Geol . Survey Prof. Paper 245. Patty, E . N., and Glover, S . L ., 1921, The mineral resources of Washington with statistics for 1919 McAllister, J. F ., 1955, Geology of mineral deposits in : Washington Geol . Survey Bull . 21 . the Ubehebe Peak quadrangle, Inyo County, Cali- fornia : California Dept . Nat . Resources Div . Mines Penrose, R . A . F ., 1893, A Pleistocene manganese Spec. Rept. 42 . deposit near Golconda, Nevada : Jour . Geology, 23 References Cited (cont'd .} Shenon, P . J ., and Reed, J . C ., 1934, Geology and ore deposits of the Elk City, Orograndes, Buffalo v. 1, p . 275-282 . Hump, and Tenmile districts, Idaho County, Peterson , N . P ., 1938, Geology and ore deposits of Idaho : U .S . Geol . Survey Circ . 9 . the Mammoth mining camp area, Pinal Co ., Shepard, C . U ., 1837, ,,', report on the geological Arizona : Arizona Bur . Mines Bull . 144, Geol . survey of Connecticut : New Haven, Conn . p . 14-- ser. 11 (Ariz . Univ . Bull ., v . 9, no . 2), p . 43 . 145 . Prosser, W . C ., 1910, Tungsten in San Juan County, Silliman, Benjamin, 1b19, Tungstenand tellurium : .'tm . Colorado : Eng . Mining Jour ., v . 90, p . 320 . Jour . Sci ., ser . 1, v . 1, p . 312, 316, 405-410 . Quinn, Alonzo , Ray, R . C ., Seymour, W . L ., and Sims, P . K ., Drake, A . A ., and Tooker, E . W ., others, 1948 , The geology and ground-water Economic geology of the Central City district, resources of the Pawtucket quadrangle : Geologic Gilpin County, Colorado : U .S . Geol . Survey Prof . map of bedrock, p . 21 for Copper Mine Hill . Paper 359 On press) . Quinn, Alonzo, and Young, J . A ., 1037, Minerals and Singewald, Q . D ., 1951, Geology and ore deposits of associated rocks at Copper Mine Hill, Rhode the Upper Blue River area, Summit County, Island : Am . Mineralogist, v . 22, p . 2'79-25'9 . Colorado : U .S . Geol . Survey Bull . 90. Ray, L. L ., and Smith , J. F ., 1941, Geology of the Singewald, Q . D ., and Butler, B .S ., 1941, Ore deposits Moreno Valley, New Mexico : Geol . Soc . America in the vicinity of the London fault of Colorado : Bull ., v . 52, p . 1"-210 . U .S . Geol . Survey Bull . 911 . Reed, G . C . , 1950, Mines and mineral deposits {except Skidmore, J. H ., 1941, Operations of the Talache fuels), Park County, Montana : U .S . Bur . Mines Mines, Inc ., at Atlanta, Idaho : Mining Cone . Jour ., Inf . Circ . 7546 . v . 27, no . 4, p . -2 _ Richardson , G . B ., 1914, Description of the Van Horn Smith, J . F ., Jr ., Cooper, J . R ., andothers, 194, San quadrangle [Texas] : U .S . Geol . Survey Geol. Pedro and Carnahan mines, New Placers mining Atlas , Folio 194 . district, Santa Fe County, New Mexico : U .S . Geol . Rinehart , C . D ., and Ross, D . C ., 1957, Geology of the Survey open-file report . Casa Diablo Mountain quadrangle, California : Smith, W . C ., and Guild, P . W ., 1942, Tungsten de- U . Geol . Survey Geologic Quad .S . Map GQ-99, posits of the Nightingale district, Pershing Co- scale 1:62,500, with brief text . unty, Nevada : U .S . Geol . Survey Bull . 936-B . Roberts, R . J ., 1943, The Rose Creek tungsten mine, Smith, N . D ., Allen, J . F ., and others, 1941, Geology Pershing County, Nevada : U . S . Geol . Survey and physiographv of the northern Wallowa Moun- Bull. 936-B . tains, Oregon : Oregon Dept . Geology and Mineral Ross, C . P ., 1937, Geology and ore deposits of the Industries Bull . 12 . Bayhorse region, Custer County, Idaho : U .S . Spencer, A . C ., 1916, The Atlantic gold district and Geol . Survey Bull . 8'7 . the North Laramie Mountains, Fremont, Con- Runner, J . J ., and Hartmann, Nil . L ., 191E, The verse, and Albany Counties, Wyoming : U .S . Geol . occurrence , chemistry, metallurgy, and uses of Survey Bull . 626 . tungsten : South Dakota School Mines Bull . 12 . Stager, H . K ., 1960, A new beryllium deposit at the Sampson, Edward , 1928, Geology and silver ore de- Mount Wheeler mine, White Pine County, Nevada, posits of the Pend Oreille district, Idaho : Idaho in U .S . Geological Survey, Short papers in the Bur . Mines and Geology Pamph . 3i . geological sciences : U .S . Geol . Survey Prof. Paper 400-B, art . 33, p . 70 . Sanford, Samuel , and Stone, R . W., 1914, Useful minerals of the United States : U . S . Geol . Survey Stone, R . W ., 1911, Geologic relation of ore deposits Bull. 585. in the Elkhorn Mountains, Montana : U .S . Geol . Survey Bull . 4'0-B . Schrader , F. C ., 1909, Mineral deposits of the Cerbat Range , Black Mountains and Grand Wash Stringham, B . F ., 1942, Mineralization in the West Cliffs , Mohave County, Arizona : U .S . Geol . Survey Tintic mining district, Utah : Geol . Soc . America Bull . 397 . Bull., v . 53, p . 26'-290 . Seager, G. F., 1944, Gold, arsenic, and tungsten Sweet, J. R ., 1954, Tungsten mining in North Carolina : deposits of the Jardine-Crevasse Mountain dis- Mining Cong . Jour ., v . 40, p . 81-86 . trict, Park County, Montana : Montana Bur . Mines Tanslev, Wilfred, Schafer, P . A ., and Hart, L. H ., and Geology Mem . 23 . 1933, A geological reconnaissance of the Tobacco Sharp, B . J., 1958, Mineralization in the intrusive Root Mountains, Madison County, Montana : %lont- rocks in Little Cottonwood Canyon, Utah : Geol . ana Bur . Mines and Geology Nlem. 9 . Soc . America Bull ., v . 69, p . 1415 -1430 . Theobald, P . K ., and Thompson, C . E ., 195 9, Geo- Shenon, P . J., 1938, Geology and ore deposits near chemical prospecting with heavy-mineral con- Murray, Idaho : Idaho Bur . Mines and Geology centrates used to locate a tungsten deposit : U .S . Pamph . 47 . Geol . Survey Circ . 411 .

24 25 MINERAL INVESTIGATIONS DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY

--- 82 8 80 79 78 77 76 75 74 73 72 71 70 69° 68 67° 66 I 128127° 83 125° 124 123 122° 121120° ------118°117 113 112 111 110 109 108 107______106 1O5 104 103 ____ 102 ---101 - 100 99 98 97 96 95 94 93 92 91 90 89 d8 37 6 85 84 _ - 48 T T------I ------\\\ ---- I c I / II - ---- I ----______: \, \ \, ,// ! : - // / : / / II I f I : : \\\\\ I /I /T1H --* - - \ '\\ \ \\ p // (// I /) / I - - \ \ T1t // N CL4 i, \\ \\\ 1, /' I 47 p \ 4 //best ' /1 7/ 224 2s ' II I I I : T 1 /j \\\\\

o3 ;74 °

\\ ------: r • - \ 4 1 - \ eJ/;ise, - I /' / ' 02 - : - II 46° 1 : : : . 2 :NoN )\ I I c ra: 38 / / I / I #4pe 5H C : /// 4 I --- - T •e A . i1 . o) c M /I ii \\\\\\ ; °Sheib i/Ce - ji /1Sk. ? ! I L :t: S ! er ' : J , 1 Hr \ :,c: I ' ! I :t ---- / 1k I - : : /I ---_------;__ \\\ CL0 I ' \\\\ r :: : : " \ : Yak : a VALE L S 0 E B 0 T RLET L oe : :a : 'T 1fl,L1l C VALI E R P / :a : : S RU 45 S E TONERI :A I / , ;i : \ / // I 0i ; Cheio t < ta 11 U L nd \ Ss :¼\ O ,rT ,/ ' \ __S / ,/ S • /' I r Iss I - - 'S/S i/ KOOHCHNG .zr ? pr iT u / 15 , TfF] -- S L P :R - J - •\\ R \ . . l S Tf ' , : j :ELSON LTRAI - \U s/_ MCONE Sd / ' : MC KN 2I_J M LEAN ISERI Baey QUSAKE //R/ 44o 44 ' ; .. r\ O ; ;y/ C 10 Su1 ) \' \ CaD epet - r 4 hte \\ 1 .: ; tbbaye t, ; . L 6 \ : i ii I I -\ \ 1 I4 s1I: - ;M0 •j "LV€ \ \ - ' *e Lt ' T o I // r \ \\ 'p 4 yII , e : / : : M,IesC \ l43o 11 9 Ro : 5 0 • 'ep,lfe ' 7B0 ,; : , ' \-/ Si Q N - , : : S j 7 r:t T 7 E Ii N wLKN1 \: R ; :.,A1r 0 • s ::r ? : 5 _Ii j: \\ ! , ; Had : ° : vZ, : * c , ! - 1_ 'I, 1k: / \ \ 1N - g !' _ _ - 1 _ : tsr - - - I I to ': \\ : U S T :4 C 1fB > : N CAMPELL PRERQN : CE MAL B%ON MM : C% ' - )/ çfo' ::g: p :?K th // \'' LlOU 71 S j : \ / 2 N 7 ALCOu c Ga9e '\\\\ ) / \\ ,/ / :i ::__\ : A \\

CO°

/ - S S , 5 Q % 'as :e ,/S S ° I H w GAT0 ! : e j P14 , 40 L / : u •LL • \\ J : L 7!'_ f ( / ; I i ! i :; &s (I \ ? H" = I / Q L N UN O • O42 :t1Ea S 0 'S J(YdU ; : , , ' ' ' "I n / 7/ SQa Yaflk -- 4 -1T (//L Y) O , I MBDT'WLHT SBULESWa x -1 v4 Q5O /j S) R A TJ2ETI -- Jer D bq_ :m e - MC4E / / - - NEB° I / I gh O ,I 9 i O tE , L 32 1/ lTE \ \ rON )N' o62? , I 'II ? o 39 z 2 c R;in 80 Q _ 0 __ cAG E' R ANE / \abo : ot' Eko SYLB I : E R L ? a's(o - / eeR AL : T / n TsH :R THOdB : TMMARL MA T7A: _ . xi I t\ ,øo'nS \ ' N 0L0S4 0 '2 O6 L ' a ; , 7( A R ILL : CU G : O14D* / \ : Ii A V A Abp N wt lpOWEEA J1 à : rZeAsro:iv \ \ K ; 'e $ / t : y LA '\\\ I oele v Y1GRF ; I UO : \ I [1 a ft5 Ii L _ I II t :. 5; ' G! N' 7 H y : H : : : :0A 080 083 • : _•) EYe tffk4J a N A " 38° o :5 I RO ' , : If J M N i\ 38 / ; , : \ Po ; ( •ASD C f o85 7 : / : Itt E N 0 I . I \ A s( flf0 / -- P&? Ko:eTW . \\ . :': .181 , \ : _ 9e \ kE \ \ Ti L j 12 Erg \ pN 8 \ C S N : s; : ) \ PERKINS A BUFF o LiNO(N : I 1N H : eSt I _Il L RD / / S T Ke / : L STEP TAYLOR NGOO : R : ML A t t - C E g L JI ey :L - / I j JJ : if Cd \ \\ N MeA j M ::A' y e t FRONSt GOSp AM/t/ r AAfR AQAMS k :: tNCOC vRMt40N d BO obk) oy2 ' RA ! OANI /rWN I :: f .: .. , I : 1Y8 I : kl Lw AN ::: N o \ (NaPA7 thUNOY SULLVC r s!? - N PWNE MDSON : lte eS N LT Q : rt9 (- t R \ _ucy ( - EA; \\ ;t \ '4 a Prs ' A L oa: :N - °: ' : \\ \ $s e \/ / ecSr Lou t \ \\ /S S : ; M \ 8o 2 \ TGT :H, O26 _ : c \\ /1 II I R o/ /0 L ,, g c \ / - I L OURAL 32 00 O31Io\r _Yi Pueb J / T b NQt 4 CTT EtY OBART:N E 'MCPHR$C N CtO E I N4 B A T E S LER MS

I 0 ;r Ltchfd TR \ 4 N / I :° c I 2O °2 22_ g , ) L ' _ ' / 0 /Lo° \ S I o r / ec J / 1 R I t I _ .- L be al - _ _ T _ - N E W wk T A : F 5h T BARRY GL :_ : : :: : £ MR ChaOtt!e I :tN ; aNs $ RFO1 CNN

d\O O

\ \ \ \

Sc/as,, S I , 67 i - \ : _ \ ) • C I 2/72 I 7 < St / ) Esta C, , L T c a fo 2 , E ' ' I E ! z \/ - / /, / r J?23 i I TT L Sa M Id L ::S :jJACN 4O I ', N[ E HENS PIN , \\ 29 , - - - °EI 0 ,. ONTOC , I 1 R E S j - , ,/ See \ C ?N IU4AHA U K T JETSON NRO ( I _ • I T1 sfoc\ HOON . 6 MxcAL,/ 5; \32 S( ; // I * :: Lk , //I •I N L ,f / ' - /1 t - p , 2 I _ < /' --- I ; N ° i / 1Pb;?::: - COCHRAN -- - I I - ,H E S ocy b CN E t MONTAGUE ILe :f ROt8 V \ N 1 - - R0 B A L 0 N R C £ N C L A Y A M / FA1 LN A A I / --*-i 1 LkbJ x t 0 :ks e g tG G N A YN B I L RRVER E BA g}L/ ai r - : - - S\ L W I J _ LI c b g CCOT IS fAAL A :: F - 0 N1 ) A wsT9 - A S H A n a '\ \ \ CO=A N E I°°°N GR N9 t n '\ i _ - _ _ L £ b \ N / N - N ÉØ L \! S \ ' : : ° , n a ii:: \\ :: ! \ \ \ \

-

I / , I I I g \ /// J E F D - % c R C K E T 28 / I I F s / A r ' o r I \A L oo c M tL ROS\ GRI\S N $ O 1" J C / / /' // ( \ / M' PI A I Lt,' JEFF SON C A LAKEU /\'R4L 2 ett RVtLL PON / N 4 iii" 0e Se Na St Ge ge C P TTi' , / OC S I / \ 0 II I IIl( I \ \ \\ 27 : E / _ II \J \ \ 3\ I __ ;' Cal C \ \\ 1' I I DIR /11/ 5 i I III JJ/ / - - ' ' ' 26 '\\ - ' \ - \ t N I - I - - /"!'' TUNGSTEN // , /1 / EXPLANATION 25° // \\\\ /' / ! f /11) Greaterthan0000shorttonscontainedW - - t h,,, I I' I I U N T E S I / /1 : II S - . (I / Ata / 5/ I I T"II11 " N I r 5- -- UDAThs ; :ALSURVEY 24° 1\ II 1/ II ! /1 --- S / ; _ Compiled by : (1,261s .u . W03) -- I - - \ D. M. Lemmon and 0 . L. Tweto / i , : \ - - - - - : - Mt ----- S SCALE1 :3168000 0 200MILES 5 - 5 150I Numbered localities are identifi in accompanying pamphlet S e :e . 1962 07gAS

NS

13 :1O7 ---O2 -94 93 g 1 90 89 88 7 86 85 8 82 81° 8O 7 23 I L" Th 17 1I---i_1 _ i _ --: ______k Ii1:: - 0 MINERAL INVESTIGATIONS C_TI For sale by U . S. Geo(ogical Survey, price 75 cents RESOURCE MAP MR-25 L _ ____