DOCSLIB.ORG

Download the Scanned

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

American Mineralogist, Volume 78, pages 450-455, 1993 NEW MINERAL NAMESX JorrN L. Jlnrnon CANMET, 555 Booth Street,Ottawa, Ontario KIA OGl, Canada Jacpx Puztnwtcz Institute of Geological Sciences,University of Wroclaw, Cybulskiego 30, 50-205 Wroclaw, Poland Bystrite* Microprobeanalysis gave Mn 10.07,Ca 4.76,Mg5.92, V.G. Ivanov, A.N. Sapozhnikov(1985) Lazuritesof the Fe 11.95,Al 0.8, P 16.18,H,O (by weight loss)20.78 + USSR. Nauka, Novosibirsk, l-172 (in Russian). wto/0,corresponding to (Mn, Ca)MgFe3(POo)r(OH) .4H,O. A.N. Sapozhnikov,V.G. Ivanov, L.F. Piskunova,A.A. The mineral forms platy crystalsup to 0.5-l mm, flat- Kashaev,L.E. Terentieva,E.A. Pobedimskaya(1991) tened[00], sliehtlyelongate [001], showing {001}, { 100}, Bystrite Ca(Na,K),(SiuAl6OroXS3), s. HrO -A new can- {010}, {l I l}, and {21l}. Light yellowishgreen to green- crinite-like mineral. Zapisk:t Vses. Mineral. Obshch., ish yellow, transparent to translucent, vitreous to greasy 120(3),97 -100 (in Russian). luster, white streak with a yellowish tint, brittle, uneven E.A. Pobedimskaya,L.E. Terentieva,A.N. Sapozhnikov, fracture,H : 3.5, imperfect{010} cleavage,D-"^ :2.69, A.A. Kashaev,G.I. Dorokhova (1991) Crystal struc- D""t": 2.70 g/cm3.Optically biaxial negative,a : 1.627, ture of bystrite. Doklady Akad. Nauk SSR,319(4), 873- P:1.642,7: 1.658,2V^"":9p ,X: b, Y: a, Z: c, 878 (in Russian). dispersionr > v; distinctly pleochroic,Z: greenishyel- Microprobe analysiscombined rvith coulometry (HrO) Iow, X and Y almost colorless.Orthorhombic symmetry, and various traditional techniques(total and sulfidic sul- a: 15.05,b:37.37, c:1.18 A, spacegroup Ccca, : fur)gave SiO, 33.37,N,O326.74, CaO 5.10,NarO 14.42, Z 16. Strongest lines of the X-ray pattern are K,O 7.63,S 12.03,SO3 0.50, CO' 0.32,Cl 0.25,H'O 9.3 8 ( r 00,040),5 .00 (7 0,22 r), 3.5 2(7 0,022), 2.8 4(9 0,082), 1.62,O = S: and Cl2.06, sum 99.92wt0/0, corresponding and 2.60(80,420).The mineral occursin a granitic peg- to (Ca, o,Na, ,rK, ,o)r,n, (Siu ,rAls s3)r,r00oro (S3), 3e(SOo). 0r- matite vein in Ilmenskij National Park, Urals, Russia, Cloor(CO3)008.IHrO.Readily soluble in dilute acids, pro- and is associatedwith products of decomposition of tri- ducing HrS. After heating in air at 800 "C becomes dark plite, francolite, ushkovite, matveevite (which see),and green. Single-crystal X-ray structural study (R : 0.078) iron and manganesehydroxides. The name is for min- showed the mineral to have trigonal symmetry, space eralogist A.V. Kalugin. groupP3 lc, a:12.855, c: 10.700A. ttre strongest Discussion.Dataare from the abstractby Kydryashova lines of the powder pattern (49 given) are:4.824(70,102), and Rozhdestvenskaya.The original paper by B.V. Ches- 3.919(80,2rr), 3.720(100,300),3.313(90,2r2), and nokov, V.A. Vilisov, V.O. Polakov, and A.F. Bushma- 2.676(70,004).D-"," : 2.43(l), D.^n: 2.45 g1cm3,H : kin, published in the book Mineraly i mineralnoe syre 5, good {1010} cleavage,weak pinacoidal cleavageor gorno-promyshlennykh rajonov Urala, could not be ob, pinacoidal parting, vitreous luster. Yellow in thin section, tained. The mineral was submitted to the CNMMN in optically uniaxial positive, <,r: 1.584,e : 1.660, pleo- 1983,but the vote was suspendedand the name has not chroic from denseyellow to almost transparent, O > E. been approved. Seealso the abstract for matveevite. J.P. Negative elongation. [The original paper has since been obtained and data The mineral occurs in the Malo-Bystrinskoe lazurite from it are incorporated in the above abstracl-Ed.l deposit, Pribaikal area, Russia, where it forms yellow, tabular crystalsup to 5 mm long, closely intergrown with lazurite, calcite, and diopside; also occurs as irregular Luberoitex grains and aggregates.Type material is at the Fersman J. Jedwab, B. Cervelle, G. Gouet, X. Hubaut, P. Piret MineralogicalMuseum, Moscow, Russia.J.P. (1992) The new platinum selenideluberoite Pt,Seofrom the Lubero region (Kivu Province, Zafte). Eur. J. Min- eral..4. 683-692. Kaluginite Electronmicroprobe analysisgave Pt 75.76, Se 24.24 V.L Kydryashova, I.V. Rozhdestvenskaya(1991) New wto/0,and that of a PtSe.8standard gave Pt 75.54, Se mineralsXLV. Zapiski Vses.Mineral. Obshch.,120(4), 24.46 wto/o,corresponding well to PtrSeo.Occurs as dark 100-l l5 (in Russian). bronze, metallic, idiomorphic crystals, and fragments up to 0.5 mm, and as round to irregular grains in Pt. Some grains prismatic, * Before publication, minerals marked with an asterisk were are polysynthetically twinned; cleavage approved by the Commission on New Minerals and Mineral parallel to {001}, VHN,5 : 461 (322-620), polishing Names, International Mineralogical Association. hardnessnear that of Pt, D-"u, : 10.68-12.78,D""r" : 0003-004x/93/0304-0450$02.00 450 JAMBOR AND PUZIEWICZ: NEW MINERAL NAMES 451 13.02,D^"o, (synthetic) : 13.02g,/cm3. In reflectedlight, mitted to the CNMMN in 1986 and were not approved. white with a greenish yellow hue, weak pleochroism, Possibly related to paulkerrite. J.P. strong bireflectance and anisotropism. Reflectance per- centagesare given in l0-nm steps in air and oil; values for R-,. and R-,. in air and in oil for the four standard Olekminskite* wavelengthsare, respectiv ely, 47 0 48.6,42.6 (38. 3, 32. 5); A.A. Konev, E.I. Vorobev, L.F. Piskunova,Z.F. Ush- 546 53.0,46.7 (42.7, 36.8); 589 55.0,48.6 (44.5, 38.2); chapovskaya,G.A. Tichonova (1991) Olekminskite 650 58.0, 51.5(41 .4, 40.8);in air x : 0.3243,0.3254, y Sr(Sr,Ca,Ba)(CO3)r-Anew mineral and the new iso- : 0.3289,0.3298, Yo/o: 53.48,47.14,)\d:579.1,519.3, morphous series olekminskite-paralstonite. Zapiski P. : 7.23, 7.76. X-ray single-crystalstudy indicated Vses.Mineral. Obshch.,120(3), 89-96 (in Russian). monoclinic symmetry, spacegroup P2,/c, a: 6.584(5), Microprobe analyses(CO, calculated, five crystals an- b: 4.602(3),c: 11.10(l) A,B : ror.e(r),z:2. Stron- alyzed, 17 analysesgiven) gave SrO 49.86, CaO 6.68, gestlines of the powderpattern (l 14.6-mmDebye-Scher- BaOI1.23, La,O.0.21, Ce,O.0.56, CO,29.94, sum 98.48 rer, CuKa radiation) are 5.45(60,002), 3.27(60,112), wt0/0,corresponding to Sr, o,oCaorroBao r,rLao oooCeo o,o- 2.93(80,rr2), 2.78(60,1l3), 2.648(608,210),2.465- (CO.),.Smallamounts of FeO (0.00-0.27),MnO (0.04- (60,113), 1.875(100B, 221,304,302), and 1.812(70,006).0.19), and MgO (0.00-0.02 wto/o)were found. The min- Known as a synthetic compound, for which the crystal eralforms needlelikecrystals, 0.005-0.010 mm thick, oc- structure has been determined. curring in spherulitic aggregates0. l0-0. I 5 mm in radius. The mineral was found in museum-preservedplacer The crystalsare round to hexagonalin crosssection; their concentrates from the Lubero region, Kivu Province, centers are enriched in Ca and Ba, and the rims in Sr. Zaire.The main constituentof the concentratesis native Transparent,brittle, 11: 3, Iustervitreous, D-.u, : 3.70(2), Pt. The new name is for the locality. Type material is in D*rc : 3.650-3.682 g,/cm3.In thin section,transparent, the Institut royal des Sciencesnaturelles de Belgique, straight extinction, uniaxial negative,ot : 1.670(2),e: Brussels.J.L.J. 1.527(2),negative elongation.There exists a range of compositions between the new mineral and paralstonite. Hexagonal symmetry and spacegroup P32l were as- Matveevite sumed by analogywith paralstonite. X-ray powder study gavea: 8.66(2),c: 6.08(2)A; strongestlines (20 given) V.I. Kydryashova, I.V. Rozhdestvenskaya(1991) New and 1.305(70,diffuse). mineralsXLV. Zapiski Vses.Mineral. Obshch.,120(4), are 3.50(100),2.49(90), 2.03(90), 100-l l5 (in Russian). The mineral occurs in barytocalcite-qtarlz veins of 5- 10 cm width that cut intrusive breccias accompanying The averageof two electron microprobe analysesgave the alkaline Kedrovyj massif, Aldan Shield, Siberia, Rus- MgO 3.51,MnO 8.06,P2O529.37, A1rO,4.25, Fe,O. sia, located close to the Murunskij alkaline complex. As- 9.21,TiO,8.54, K,O 2.11,H,O (by difference)34.95, sociatedminerals are calcite, barite, and ankerite that re- sum 100 wt0/0,corresponding to (K,H3O)Ti(Mn,Mg)r- placed barytocalcite.The name is for the city Olekminsk, (Fe3*,Al)r(POo)o(OH),.l5H,O. Isometric or thick platy the administration center of the Murunskij alkaline com- crystalsup to 0. l-0.2 mm are white to almost colorless, plex. The repository for type material was not given. J.P. alsoyellowish,showing {010}, {100}, {lll}. Transparent to translucent, white streak, luster vitreous, pearly on (010).Perfect {010} cleavage,brittle, unevenfracture, ll Padmaite* : 2.5,D^."": 2.32,D.^,.: 2.40 g/cm3.Optically biaxial positive,a : 1.574, B : 1.580,^y : 1.618,2V. ,. : 44', Yu.S. Polekhovskij,A.V. Voloshin, I.P. Tarasova,S.A. X: P, Y: oLZ: ^y.Orthorhombic symmetry, a: 12.42, Nikitin, Ya.A. Pakhomovskij,Yu.P.
Recommended publications
  • New Mineral Names*

    New Mineral Names*

    American Mineralogist, Volume 68, pages 280-2E3, 1983 NEW MINERAL NAMES* MrcnnBr- FrelscHen AND ADoLF Pnnsr Arsendescloizite* The mineral occurs at Uchucchacua,Peru, in acicular crystals up to 2fi) x 20 microns, associatedwith galena, manganoan (1982) Paul Keller and P. J. Dunn Arsendescloizite, a new sphalerite, pyrite, pyrrhotite, and alabandite, with gangue of mineral from Tsumeb. Mineralog. Record, 13, 155-157. quartz, bustamite, rhodonite, and calcite. Also found at Stitra, pyrite-pyrrhotite in rhyo- Microprobe analysis (HzO by TGA) gave AszOs 26.5, PbO Sweden,in a metamorphosed deposit 52.3,ZnO1E.5, FeO 0.3, Il2O2.9, sum 100.5%,corresponding to litic and dacitic rocks; in roundedgrains up to 50 fl.min diameter, associated with galena, freibergite, gudmundite, manganoan Pb1.s6(Zn1.63Fe6.oJ(AsOaXOH)1a or PbZn(AsO+XOH), the ar- senateanalogue ofdescloizite. The mineral is slightly soluble in sphalerite,bismuth, and spessartine. hot HNO3. The name is for A. Benavides, for his contribution to the Weissenbergand precessionmeasurements show the mineral development of mining in Peru. Type material is at the Ecole (Uchucchacua)and at the Free to be orthorhombic, space group F212121,a : 6.075, b = 9.358, Natl. Superieuredes Mines, Paris (SAtra). c = 7.$44, Z = 4, D. calc. 6.57. The strongestX-ray lines University, Amsterdam, Netherlands M.F. (31 eiven) are 4.23(6)(lll); 3.23(lOXl02);2.88(10)(210,031); 2.60 Kolfanite* (E)(13 I ) ; 2.W6)Q3r) ; I .65(6X33I, 143,233); r.559 (EX3I 3,060,25I ). Crystalsare tabular up to 1.0 x 0.4 x 0.5 mm in size, on {001}, A.
  • Oxygenic Bismuth Minerals in the NE Part of the Karkonosze Pluton (West Sudetes, SW Poland)

    Oxygenic Bismuth Minerals in the NE Part of the Karkonosze Pluton (West Sudetes, SW Poland)

    Acta Geologica Polonica, Vol. 68 (2018), No. 4, pp. 537–554 DOI: 10.1515/agp-2018-0016 Oxygenic bismuth minerals in the NE part of the Karkonosze pluton (West Sudetes, SW Poland) ANDRZEJ KOZŁOWSKI and WITOLD MATYSZCZAK* Faculty of Geology, University of Warsaw, Żwirki i Wigury 93, PL-02-089 Warszawa, Poland. *E-mail: [email protected] ABSTRACT: Kozłowski, A. and Matyszczak, W. 2018. Oxygenic bismuth minerals in the NE part of the Karkonosze pluton (West Sudetes, SW Poland). Acta Geologica Polonica, 68 (4), 537–554. Warszawa. The study presents fifteen oxygen-bearing secondary minerals of bismuth from the north-eastern part of the Variscan Karkonosze granitoid pluton in the northern zone of the Bohemian massif. The minerals were inves- tigated by optical, electron microprobe, classic chemical, XRD, IR absorption and fluid inclusion methods. The late, very low temperature epithermal solutions most probably caused formation of sillénite, kusachiite, bismoclite, bismutite, beyerite, kettnerite, pucherite, schumacherite, namibite and eulytite. Solutions dominated by supergene (meteoric) waters were the parents for bismite, russellite, koechlinite, ximengite and walpurgite. The paper also contains information on early research on the investigated minerals. Key words: Karkonosze granitoid pluton; Bismuth minerals; Secondary minerals; Oxidation; Vein; Pegmatite. FOREWORD joined by WM as the co-author, interested like him in further investigations of the Karkonosze pluton (see The paper presents an investigation of several ox- e.g., Matyszczak 2018). ygen-bearing minerals of bismuth, which were found in the Karkonosze granitoid, collected during field work by AK in 1976–1990. Most of the minerals were INTRODUCTION not known until the present either from the Polish part of the Karkonosze pluton, or from the area of The systematic scientific investigation of the Poland.
  • Newsletter June 2006

    Newsletter June 2006

    w NEWSLETTER INTERNATIONAL TUNGSTEN INDUSTRY ASSOCIATION Rue Père Eudore Devroye 245, 1150 Brussels, Belgium Tel: +32 2 770 8878 Fax: + 32 2 770 8898 E-mail: [email protected] Web: www.itia.info The programme will begin on Tuesday Toxicologic Assessment for the Production and 19th evening with a Reception in the hotel jointly Mechanical Processing of Materials containing hosted by Tiberon Minerals and ITIA. Tungsten Heavy Metal. Not least will be an introduction to the formation of a Consortium to deal Working sessions will be held on Wednesday Annual with the implications of REACH on behalf of the and Thursday mornings and papers will tungsten industry, both legal and financial. include: General Readers will recall that REACH will place an obligation ▼ HSE work programme on individual companies to submit a technical dossier and register any chemical substance Meeting ▼ Ganzhou’s Tungsten Industry and Its Progress manufactured or imported into the EU in quantities ▼ Geostatistics in the mid and long-term planning for of more than 1 tonne. the Panasqueira deposit (Nuno Alves, Beralt Tin Tuesday 26 to and Wolfram) In order to assist companies with the registration process, the Commission recommends the creation ▼ Thursday 28 Paper by Zhuzhou Cemented Carbide of industry Consortia. These Consortia will enable the ▼ Update on Tiberon’s Development of Tungsten joint development, submission and sharing of September 2006 Mining in Vietnam information with the aim of reducing the compliance burden on individual companies and preventing ▼ Update on China’s Tungsten Industry Hyatt Regency Hotel, unnecessary additional animal testing. ▼ Update on US Tungsten Market (Dean Schiller, Boston, USA OsramSylvania Products) Both members and non-members will be equally ▼ Review of Trends in 2006 (Nigel Tunna, Metal-Pages) welcome to join the Consortium, saving themselves considerable amounts of money and time by so doing.
  • Journal of the Russell Society, Vol 4 No 2

    Journal of the Russell Society, Vol 4 No 2

    JOURNAL OF THE RUSSELL SOCIETY The journal of British Isles topographical mineralogy EDITOR: George Ryba.:k. 42 Bell Road. Sitlingbourn.:. Kent ME 10 4EB. L.K. JOURNAL MANAGER: Rex Cook. '13 Halifax Road . Nelson, Lancashire BB9 OEQ , U.K. EDITORrAL BOARD: F.B. Atkins. Oxford, U. K. R.J. King, Tewkesbury. U.K. R.E. Bevins. Cardiff, U. K. A. Livingstone, Edinburgh, U.K. R.S.W. Brai thwaite. Manchester. U.K. I.R. Plimer, Parkvill.:. Australia T.F. Bridges. Ovington. U.K. R.E. Starkey, Brom,grove, U.K S.c. Chamberlain. Syracuse. U. S.A. R.F. Symes. London, U.K. N.J. Forley. Keyworth. U.K. P.A. Williams. Kingswood. Australia R.A. Howie. Matlock. U.K. B. Young. Newcastle, U.K. Aims and Scope: The lournal publishes articles and reviews by both amateur and profe,sional mineralogists dealing with all a,pecI, of mineralogy. Contributions concerning the topographical mineralogy of the British Isles arc particularly welcome. Not~s for contributors can be found at the back of the Journal. Subscription rates: The Journal is free to members of the Russell Society. Subsc ription rates for two issues tiS. Enquiries should be made to the Journal Manager at the above address. Back copies of the Journal may also be ordered through the Journal Ma nager. Advertising: Details of advertising rates may be obtained from the Journal Manager. Published by The Russell Society. Registered charity No. 803308. Copyright The Russell Society 1993 . ISSN 0263 7839 FRONT COVER: Strontianite, Strontian mines, Highland Region, Scotland. 100 mm x 55 mm.
  • Chrisstanleyite Ag2pd3se4 C 2001-2005 Mineral Data Publishing, Version 1

    Chrisstanleyite Ag2pd3se4 C 2001-2005 Mineral Data Publishing, Version 1

    Chrisstanleyite Ag2Pd3Se4 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Monoclinic. Point Group: 2/m or 2. Anhedral crystals, to several hundred µm, aggregated in grains. Twinning: Fine polysynthetic and parquetlike, characteristic. Physical Properties: Tenacity: Slightly brittle. Hardness = ∼5 VHN = 371–421, 395 average (100 g load), D(meas.) = n.d. D(calc.) = 8.30 Optical Properties: Opaque. Color: Silvery gray. Streak: Black. Luster: Metallic. Optical Class: Biaxial. Pleochroism: Slight; pale buff to slightly gray-green buff. Anisotropism: Moderate; rose-brown, gray-green, pale bluish gray, dark steel-blue. Bireflectance: Weak to moderate. R1–R2: (400) 35.6–43.3, (420) 36.8–44.2, (440) 37.8–45.3, (460) 39.1–46.7, (480) 40.0–47.5, (500) 41.1–48.0, (520) 42.1–48.5, (540) 42.9–48.7, (560) 43.5–49.1, (580) 44.1–49.3, (600) 44.4–49.5, (620) 44.6–49.6, (640) 44.5–49.3, (660) 44.4–49.2, (680) 44.2–49.1, (700) 44.0–49.0 Cell Data: Space Group: P 21/m or P 21. a = 6.350(6) b = 10.387(4) c = 5.683(3) β = 114.90(5)◦ Z=2 X-ray Powder Pattern: Hope’s Nose, England. 2.742 (100), 1.956 (100), 2.688 (80), 2.868 (50b), 2.367 (50), 1.829 (30), 2.521 (20) Chemistry: (1) (2) (3) Pd 37.64 35.48 37.52 Pt 0.70 Hg 0.36 Ag 25.09 24.07 25.36 Cu 0.18 2.05 Se 36.39 38.50 37.12 Total 99.30 101.16 100.00 (1) Hope’s Nose, England; by electron microprobe, average of 26 analyses; corresponding to (Ag2.01Cu0.02)Σ=2.03Pd3.02Se3.95.
  • The Search for Tungsten Deposits

    The Search for Tungsten Deposits

    Bulletin No. 5 Geological Society of Malaysia The Search for Tungsten Deposits K. F. G. Hosking PERSATUAN GEOLOGI MALAYSIA Kuala Lumpur, 1973 THE GEOLOGICAL SOCIETY OF MALAYSIA was founded in 1967 to satisfy a felt need of geologists in Malaysia for a meeting ground for discussion, exchange of ideas and information, and publication of material on geologic topics of relevance to Malaysia. Officers (1972): President P.H. Stauffer Vice-President S. Sartono Secretary C.H. Leigh Assistant Secretary KR. Chakraborty Editor B.K. Tan Councillors Choy Kam Wai C.S. Hutchison David Lee Thien Choi R.W. Murphy Membership fees: Entrance fee $M 5. Full membership I 15/yr Associate (non-professional) r Student J 8/yr Address inquiries to: The Hon. Secretary Geological Society of Malaysia clo Department of Geology University of Malaya Kuala Lumpur Malaysia Hints to contributors: Papers are welcomed for publication in the Bulletin Series. Manuscripts of any length will be considered. They may be on any aspect of the geology of Southeast Asia or neighbouring regions or on related and relevant topics. Short informal notes, progress reports or more general items of information are best submitted to the GSM Newsletter, issued bimonthly. Manuscripts submitted Jor the Bulletin Series should be typed double-spaced, and in English or Bahasa Malaysia. Two copies of the manuscript should be submitted . .+ Maps and other illustrations should be designed to fit in a 15 x 22 cm area (or t or ! of that) after reduction; fold-outs and large maps will be considered only under special circumstances. Dlustrations should be in ink and suitable for making blocks.
  • European Journal of Mineralogy

    European Journal of Mineralogy

    Title Grundmannite, CuBiSe<SUB>2</SUB>, the Se-analogue of emplectite, a new mineral from the El Dragón mine, Potosí, Bolivia Authors Förster, Hans-Jürgen; Bindi, L; Stanley, Christopher Date Submitted 2016-05-04 European Journal of Mineralogy Composition and crystal structure of grundmannite, CuBiSe2, the Se-analogue of emplectite, a new mineral from the El Dragόn mine, Potosí, Bolivia --Manuscript Draft-- Manuscript Number: Article Type: Research paper Full Title: Composition and crystal structure of grundmannite, CuBiSe2, the Se-analogue of emplectite, a new mineral from the El Dragόn mine, Potosí, Bolivia Short Title: Composition and crystal structure of grundmannite, CuBiSe2, Corresponding Author: Hans-Jürgen Förster Deutsches GeoForschungsZentrum GFZ Potsdam, GERMANY Corresponding Author E-Mail: [email protected] Order of Authors: Hans-Jürgen Förster Luca Bindi Chris J. Stanley Abstract: Grundmannite, ideally CuBiSe2, is a new mineral species from the El Dragόn mine, Department of Potosí, Bolivia. It is either filling small shrinkage cracks or interstices in brecciated kruta'ite−penroseite solid solutions or forms independent grains in the matrix. Grain size of the anhedral to subhedral crystals is usually in the range 50−150 µm, but may approach 250 µm. Grundmannite is usually intergrown with watkinsonite and clausthalite; other minerals occasionally being in intimate grain-boundary contact comprise quartz, dolomite, native gold, eskebornite, umangite, klockmannite, Co-rich penroseite, and three unnamed phases of the Cu−Bi−Hg−Pb−Se system, among which is an as-yet uncharacterizedspecies with the ideal composition Cu4Pb2HgBi4Se11. Eldragόnite and petrovicite rarely precipitated in the neighborhood of CuBiSe2. Grundmannite is non-fluorescent, black and opaque with a metallic luster and black streak.
  • Identification and Occurrence of Uranium and Vanadium Minerals from the Colorado Plateaus

    Identification and Occurrence of Uranium and Vanadium Minerals from the Colorado Plateaus

    SpColl £2' 1 Energy I TEl 334 Identification and Occurrence of Uranium and Vanadium Minerals from the Colorado Plateaus ~ By A. D. Weeks and M. E. Thompson ~ I"\ ~ ~ Trace Elements Investigations Report 334 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY IN REPLY REFER TO: UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY WASHINGTON 25, D. C. AUG 12 1953 Dr. PhilUp L. Merritt, Assistant Director Division of Ra1'r Materials U. S. AtoTILic Energy Commission. P. 0. Box 30, Ansonia Station New· York 23, Nei< York Dear Phil~ Transmitted herewith are six copies oi' TEI-334, "Identification and occurrence oi' uranium and vanadium minerals i'rom the Colorado Plateaus," by A , D. Weeks and M. E. Thompson, April 1953 • We are asking !41'. Hosted to approve our plan to publish this re:por t as a C.i.rcular .. Sincerely yours, Ak~f777.~ W. H. ~radley Chief' Geologist UNCLASSIFIED Geology and Mineralogy This document consists or 69 pages. Series A. UNITED STATES DEPARTMENT OF TEE INTERIOR GEOLOGICAL SURVEY IDENTIFICATION AND OCCURRENCE OF URANIUM AND VANADIUM MINERALS FROM TEE COLORADO PLATEAUS* By A• D. Weeks and M. E. Thompson April 1953 Trace Elements Investigations Report 334 This preliminary report is distributed without editorial and technical review for conformity with ofricial standards and nomenclature. It is not for public inspection or guotation. *This report concerns work done on behalf of the Division of Raw Materials of the u. s. Atomic Energy Commission 2 USGS GEOLOGY AllU MINEFALOGY Distribution (Series A) No. of copies American Cyanamid Company, Winchester 1 Argulllle National La:boratory ., ., .......
  • Crystal Chemistry of Wulfenite (Pbmoo4) and Wolframite ([Fe,Mn]WO4)

    Crystal Chemistry of Wulfenite (Pbmoo4) and Wolframite ([Fe,Mn]WO4)

    University of Calgary PRISM: University of Calgary's Digital Repository Graduate Studies The Vault: Electronic Theses and Dissertations 2021-05-05 Crystal Chemistry of Wulfenite (PbMoO4) and Wolframite ([Fe,Mn]WO4) Umbsaar, Darren Andrew Umbsaar, D. A. (2021). Crystal Chemistry of Wulfenite (PbMoO4) and Wolframite ([Fe,Mn]WO4) (Unpublished master's thesis). University of Calgary, Calgary, AB. http://hdl.handle.net/1880/113407 master thesis University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. Downloaded from PRISM: https://prism.ucalgary.ca UNIVERSITY OF CALGARY Crystal Chemistry of Wulfenite (PbMoO4) and Wolframite ([Fe,Mn]WO4) by Darren Andrew Umbsaar A THESIS SUBMITTED TO THE FACULTY OF GRADUATE STUDIES IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE GRADUATE PROGRAM IN GEOLOGY AND GEOPHYSICS CALGARY, ALBERTA MAY, 2021 © Darren Andrew Umbsaar 2021 ii Abstract This study examines the crystal chemistry of some natural simple molybdate and tungstate minerals, namely wulfenite (PbMoO4) and wolframite ([Fe,Mn]WO4). Historically, these mineral species have been a challenge to analyze through X-ray diffraction (XRD) methods, due to the presence of large atoms (Pb, Mo, and W) within the structure. These large atoms dominate in scattering X-rays, and Pb also has high absorption, making it a challenge to accurately determine the position of the oxygen atoms, which are much lighter and do not contribute to the diffraction pattern as strongly.
  • A Specific Gravity Index for Minerats

    A Specific Gravity Index for Minerats

    A SPECIFICGRAVITY INDEX FOR MINERATS c. A. MURSKyI ern R. M. THOMPSON, Un'fuersityof Bri.ti,sh Col,umb,in,Voncouver, Canad,a This work was undertaken in order to provide a practical, and as far as possible,a complete list of specific gravities of minerals. An accurate speciflc cravity determination can usually be made quickly and this information when combined with other physical properties commonly leads to rapid mineral identification. Early complete but now outdated specific gravity lists are those of Miers given in his mineralogy textbook (1902),and Spencer(M,i,n. Mag.,2!, pp. 382-865,I}ZZ). A more recent list by Hurlbut (Dana's Manuatr of M,i,neral,ogy,LgE2) is incomplete and others are limited to rock forming minerals,Trdger (Tabel,l,enntr-optischen Best'i,mmungd,er geste,i,nsb.ildend,en M,ineral,e, 1952) and Morey (Encycto- ped,iaof Cherni,cal,Technol,ogy, Vol. 12, 19b4). In his mineral identification tables, smith (rd,entifi,cati,onand. qual,itatioe cherai,cal,anal,ys'i,s of mineral,s,second edition, New york, 19bB) groups minerals on the basis of specificgravity but in each of the twelve groups the minerals are listed in order of decreasinghardness. The present work should not be regarded as an index of all known minerals as the specificgravities of many minerals are unknown or known only approximately and are omitted from the current list. The list, in order of increasing specific gravity, includes all minerals without regard to other physical properties or to chemical composition. The designation I or II after the name indicates that the mineral falls in the classesof minerals describedin Dana Systemof M'ineralogyEdition 7, volume I (Native elements, sulphides, oxides, etc.) or II (Halides, carbonates, etc.) (L944 and 1951).
  • Tellurium and Selenium Mineralogy of Gold Deposits in Northern Fennoscandia

    Tellurium and Selenium Mineralogy of Gold Deposits in Northern Fennoscandia

    minerals Article Tellurium and Selenium Mineralogy of Gold Deposits in Northern Fennoscandia Arkadii A. Kalinin Kola Science Center, Geological Institute, Russian Academy of Science, 184200 Apatity, Russia; [email protected]; Tel.: +7-921-663-68-36 Abstract: Mineralization of Te and Se was found in gold deposits and uranium occurrences, located in the Paleoproterozoic greenstone belts in Northern Fennoscandia. These deposits are of different genesis, but all of them formed at the late stages of the Svecofennian orogeny, and they have common geochemical association of metals Au, Cu, Co, U, Bi, Te, and Se. The prevalent Te minerals are Ni and Fe tellurides melonite and frohbergite, and Pb telluride altaite. Bismuth tellurides were detected in many deposits in the region, but usually not more than in two–three grains. The main selenide in the studied deposits is clausthalite. The most diversified selenium mineralization (clausthalite, klockmannite, kawazulite, skippenite, poubaite) was discovered in the deposits, located in the Russian part of the Salla-Kuolajarvi belt. Consecutive change of sulfides by tellurides, then by selenotellurides and later by selenides, indicates increase of selenium fugacity, f Se2, in relation to f Te2 and to f S2in the mineralizing fluids. Gold-, selenium-, and tellutium-rich fluids are potentially linked with the post-Svecofennian thermal event and intrusion of post-orogenic granites (1.79–1.75 Ga) in the Salla-Kuolajarvi and Perapohja belts. Study of fluid inclusions in quartz from the deposits in the Salla-Kuolajarvi belt showed that the fluids were high-temperature (240–300 ◦C) with high salinity (up to 26% NaCl-eq.).
  • Cornish Mineral Reference Manual

    Cornish Mineral Reference Manual

    Cornish Mineral Reference Manual Peter Golley and Richard Williams April 1995 First published 1995 by Endsleigh Publications in association with Cornish Hillside Publications © Endsleigh Publications 1995 ISBN 0 9519419 9 2 Endsleigh Publications Endsleigh House 50 Daniell Road Truro, Cornwall TR1 2DA England Printed in Great Britain by Short Run Press Ltd, Exeter. Introduction Cornwall's mining history stretches back 2,000 years; its mineralogy dates from comparatively recent times. In his Alphabetum Minerale (Truro, 1682) Becher wrote that he knew of no place on earth that surpassed Cornwall in the number and variety of its minerals. Hogg's 'Manual of Mineralogy' (Truro 1825) is subtitled 'in wich [sic] is shown how much Cornwall contributes to the illustration of the science', although the manual is not exclusively based on Cornish minerals. It was Garby (TRGSC, 1848) who was the first to offer a systematic list of Cornish species, with locations in his 'Catalogue of Minerals'. Garby was followed twenty-three years later by Collins' A Handbook to the Mineralogy of Cornwall and Devon' (1871; 1892 with addenda, the latter being reprinted by Bradford Barton of Truro in 1969). Collins followed this with a supplement in 1911. (JRIC Vol. xvii, pt.2.). Finally the torch was taken up by Robson in 1944 in the form of his 'Cornish Mineral Index' (TRGSC Vol. xvii), his amendments and additions were published in the same Transactions in 1952. All these sources are well known, but the next to appear is regrettably much less so. it would never the less be only just to mention Purser's 'Minerals and locations in S.W.