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Tucson Gem and Mineral Society, Inc. CK TALK RO Volume 9 - Issue 4 March - April 2015 President’s Page Thanks to all the volunteers that gave so much of their time and energy to make the 61st Tucson Gem and Mineral Show® another huge success. It is amazing what can be done when a committed group of individuals, with a common cause, put their hearts into a project. Every year this commitment is justification for the best gem and mineral show in the world. Now as we move on into Spring we have other issues we must address. In May we will be awarding our scholarship to some lucky student. If you qualify, please submit a statement of your eligibility and interest during the next month to Tucson Gem and Mineral Society, Inc. the Society Office. The Board of Directors will 2014 - 2015 Officers & Directors be meeting and making a decision on the President: Diane Braswell ph. 520.574.1942 recipient in April. Let us hear from you, and Vice President: Mark Marikos, ph. 520.360.4264 Good Luck!!! Recording Secty.: Marilyn Reynolds, ph. 520.296.0688 Treasurer: Ellen Alexander, ph. 520.743.9383 Also, my friends, election is coming up in May Membership Secty.: Alrene Hibben, ph. 520.529.6502 and it will be time to elect a few new Board Director: Madison Barkley, ph. 804.761.8324 members. A nomination committee will be Director: Dick Gottfried, ph. 520-584-0211 asked to formulate a slate of officers to present Director: Jo Anne Sam, ph. 520-403-0117 to you at the May meeting. Please give some Past President: Mark Ascher, ph. 520.886.0397 thought to joining the Board and adding some Librarians: Robert & Elaine Royer new and exciting plans for our Society. So enough business. All of you must get out in ROCK TALK Editor: P. R. McClain this wonderful Arizona weather and experience ROCK TALK Assistant Editor: R. Marques the desert wildflowers at their best. I am told ROCK TALK Reporters/Contributors: Mark Ascher, Anna this is going to be a really good year. We are all Domitrovic, Peter Megaw, Diane Braswell, Kerry Towe, Donn Cuson, Helen Serras-Herman, Paul Harter, Ellen Alexander. so blessed to be here and enjoy the experience of a 70 degree winter, so put down the drudgery of housework and yard work and live a little. Put ROCK TALK is the official publication on your boots, get out there, take a camera and and is © 2015 by the Tucson Gem and come back with some wonderful memories !!! Mineral Society, Inc. to reproduce ma- terial contained herein for non-profit use only. All commercial and other use requires written permission from the Tucson Gem and Mineral Society, Inc. Page 2 ROCK TALK TGMS General Meeting - January 5, 2015 PROGRAM: Speaker: Anthony J. Albini Presentation: Thirty Five Years of Collecting Connecticut Minerals. Photographs by Harold Moritz. OLD BUSINESS: Approval of Minutes: November 3, December 1 minutes approved. Field Trips: No club trips to Ray due to management. January 17, St. David trip to collect selenite. Suitable for all vehicles. Parking is a quarter mile from the collecting site. No need for sledge hammers/chisels; long handled garden tools recommended. Meeting at Denny’s in Benson at 9:30 a.m. to caravan. Must sign a release form. Silver Bell Mine, January 31st. Meet at 8:30 a.m. at ASARCO mine office. Nuevo Coral and Mission in February. Show: Volunteer list is being sent to individual chairs, who will call volunteers individually. February meeting is the first Monday, not the second. DOOR PRIZE WINNERS: Ortrud Schuh,(refreshments), Stephan Koek, Donna Pugh, Christina Marikos, Andy Herman Respectfully submitted, Christina Marikos Recording Secretary pro tem Let’s start thinking “BLUE” for 2016! Grandviewite Cyanotrichite Photo by: Ken Don Volume 9 - Issue 4 ROCK TALK TGMS General Meeting - February 2, 2015 The General Meeting of the Tucson Gem and Mineral New TGMS website: Jerry Glazman commented that Society was called to order by President Diane the website is spectacular and complimented Pat Braswell at 7:30 p.m. Visitors and new members McClain on the design. were recognized and welcomed to the meeting. Show Publicity: A thirty minute show about the PROGRAM: Dr. Marcus Origlieri presented Tucson Gem & Mineral Show® which appeared “Finding New Minerals at the Mineral Show and in the Sunday on Tucson TV was reported to be excellent. Laboratory.” In 2011 at the Denver Show, Marcus acquired a pink crystal specimen suggesting Mn2+. DRAWING FOR DOOR PRIZES: Jo Anne Sam, as Initial powder diffraction showed results similar to meeting host, made the first choice. Drawing winners ferrobustamite, but were not a match. Raman were Deborah Alderman, Pete Peterson, Marilyn spectroscopy results were in between pectolite and Reynolds and Rick DeMoss. serandite. Single crystal x-ray diffraction also placed the mineral between pectolite and serandite. The The meeting was adjourned at 8:50 p.m. specimen was brought out of the Wessels Mine in the Kalahari manganese field in South Africa by Marshall Respectfully submitted, Sussman. The new mineral has been named Marilyn Reynolds, Recording Secretary marshallsussmanite. The mineral has been added to the RRUFF Project website which contains an integrated database of Raman spectra, X-ray diffraction and chemistry data for minerals. Marcus showed numerous new minerals and advised the audience to look for “weird” minerals, often occurring with other rare minerals. Micro photos by: Ron Gibbs BREAK: Thanks to Jo Anne Sam for providing cookies and vegetables for refreshments. OLD BUSINESS: Field Trips: Jerry Glazman reported that the St. David trip for selenite had 20 participants and everyone found something they really liked. Kerry Towe announced than Donn Cuson will lead a field trip to Ruby (Nuevo Coral) February 21st for geodes and quartz. There is a 15 person limit. So many people signed up on a waiting list that another trip will probably go in April. The Mission Mine trip on February 27th will go to the old mine dumps by Daisy Mine. Participants may collect a five gallon bucket plus backpack. Hard hat and glasses are required. Be at the mine office by 8:50 a.m. to sign mine forms. Transportation to collection site will be in mine vehicles. There is a waiting list for this trip also. NEW BUSINESS: Micro photo by: Donations of books are needed by Friends of the Ken Don Pima County Public Library located at 220 N. Country Club Road in Tucson. Show Volunteer Packets will be ready Wednesday. If a parking pass is missing, turn in the parking receipt to the office and the $8.00 fee will be reimbursed. Page 4 ROCK TALK “GRAND PRIZE GIVEAWAY!” 2015 “Grand Prize Winner” Dipti Tillu, from Oro Valley was the ‘lucky” young lady that won the “Grand Prize” this year. You can tell by the look on her face that she was pleased as one person could be over her good fortune. Jack Wixon and Penny Savoie did another great job of selecting the item for the “Grand Prize,” a 14kt. ruby and diamond bracelet. We think that everyone has a fun time being involved in this …. and we can’t wait to see what the “Grand Prize” is going to be for 2016! Volume 9 - Issue 4 ROCK TALK Minerals of Western Europe - Wrap Up! What a difference a week shakily). Bob Melzer, Ellen makes! The house-guests are Alexander, Richard Nassi, gone, specimens are back in Dave Witwer, Tim McClain, place from exhibits in Best of Marilyn Reynolds, Ruby Theme, Breast Cancer Munson, Larry Klement and Survivors, Quartz Thumbnails Donna Rae Klement and Blue Minerals, and the managed to get all of our new brain-fog from three weeks of cases put together again, (completely voluntary) sleep which was quite a job given deprivation is starting to lift. the heft of the panels! [We Sadly, this year’s avatar of the NEED some younger and most ephemeral world-class mineral museum in stronger members to pitch in existence is history, but the images of all those great for this job next year, so let exhibits linger in our (recovering) memories … and Ken Robert and Elaine know Don’s photos! ASAP if you can help. Our “Minerals of Western Europe” theme was played to Wayne’s lining crew (Bob & Jeannette Barnes, Denise by over 50 museum and private exhibitors representing Collins, Don & Sue Feyrer, Jerry & Anneliese Foley, Larry over 14 countries … with 8 from various parts of the UK. & Donna Rae Klement, Donna Pugh, Janet Reue, Ted & Exhibits ranged from some Janet Rupp) again managed to get snappy looking liners of the oldest mineral not only into the cases that requested them…but specimens known (1500’s managed to save set-up day for the usual pile of guests belonging to Georges who “forgot” that they needed liners…or showed up with Agricola), some of the best liners made for our old cases. (Speaking of the old cases, Swiss minerals ever seen Pat and Linda pulled off a coup and found a good home (the Jordanite and for all of them…plus the liners … In Mexico! They’ll be Anatase were amazing, distributed to schools for Show and Tell displays!!!) not to mention all the Gwindels), great suites of Northern England fluorites (Rogerley and Greenbank cases), and German classics (Krugerhaus, Smithsonian and National Museum of Canada). The “Great Quartz Face- Off” was also a great success with over 20 cases devoted to quartz in all its forms and colors (Gene’s amethyst “Y” had everyone asking where the MCA was … and did I mention all the Add to all of the above the great job John and Nancy did Gwindels?).
Recommended publications
  • Mineral Processing

    Mineral Processing

    Mineral Processing Foundations of theory and practice of minerallurgy 1st English edition JAN DRZYMALA, C. Eng., Ph.D., D.Sc. Member of the Polish Mineral Processing Society Wroclaw University of Technology 2007 Translation: J. Drzymala, A. Swatek Reviewer: A. Luszczkiewicz Published as supplied by the author ©Copyright by Jan Drzymala, Wroclaw 2007 Computer typesetting: Danuta Szyszka Cover design: Danuta Szyszka Cover photo: Sebastian Bożek Oficyna Wydawnicza Politechniki Wrocławskiej Wybrzeze Wyspianskiego 27 50-370 Wroclaw Any part of this publication can be used in any form by any means provided that the usage is acknowledged by the citation: Drzymala, J., Mineral Processing, Foundations of theory and practice of minerallurgy, Oficyna Wydawnicza PWr., 2007, www.ig.pwr.wroc.pl/minproc ISBN 978-83-7493-362-9 Contents Introduction ....................................................................................................................9 Part I Introduction to mineral processing .....................................................................13 1. From the Big Bang to mineral processing................................................................14 1.1. The formation of matter ...................................................................................14 1.2. Elementary particles.........................................................................................16 1.3. Molecules .........................................................................................................18 1.4. Solids................................................................................................................19
  • MAMMOTHITE: a Pb-Sb-Cu-Al OXY-HYDROXIDE-SULFATE — HYDROGEN ATOM DETERMINATION LOWERS SPACE GROUP SYMMETRY

    MAMMOTHITE: a Pb-Sb-Cu-Al OXY-HYDROXIDE-SULFATE — HYDROGEN ATOM DETERMINATION LOWERS SPACE GROUP SYMMETRY

    canmin.52.4.00048 04-03-15 10:50 687 The Canadian Mineralogist Vol. 52, pp. 687-698 (2014) DOI: 10.3749/canmin.1400048 MAMMOTHITE: A Pb-Sb-Cu-Al OXY-HYDROXIDE-SULFATE — HYDROGEN ATOM DETERMINATION LOWERS SPACE GROUP SYMMETRY § JOEL D. GRICE Canadian Museum of Nature, PO Box 3443, Stn D, Ottawa, ON, K1P 6P4, Canada MARK A. COOPER Department of Geological Sciences, University of Manitoba, 125 Dysart Road, Winnipeg, MB, R3T 2N2, Canada ABSTRACT The crystal structure of mammothite, Pb6Cu4AlSbO2(SO4)2Cl4(OH)16, is monoclinic in acentric space group C2, with a 18.959(4), b 7.3398(19), c 11.363(3) Å, β 112.428(9)˚, V 1461.6(1.0) Å3, and Z = 2. It has been refined to an R index of 0.019 on the basis of 3878 observed reflections. There are three crystallographically distinct Pb sites with two different co-ordinations: [Pb1O8Cl1] is a mono-capped square antiprism polyhedron, while [Pb21O7Cl2] and [Pb22O7Cl2] are tri- capped trigonal prisms. Both Cu2+ sites have distorted [4 + 2] octahedral coordination due to the Jahn-Teller effect. The Al and Sb sites are regular-octahedral co-ordination with oxygen atoms. The [SO4] tetrahedron is quite distorted, with S–O bond lengths varying from 1.45 to 1.52 Å and subtended O–S–O angles varying from 106 to 113˚. In the structure there are eight (OH)– anions. All eight H atoms pfu were located, and it is these structure sites that reduce the symmetry from centric to acentric. Although mammothite is classified as a framework structure, it has a distinct layering.
  • Utahite, a New Mineral and Associated Copper Tellurates from the Centennial Eureka Mine, Tintic District, Juab County, Utah

    Utahite, a New Mineral and Associated Copper Tellurates from the Centennial Eureka Mine, Tintic District, Juab County, Utah

    UTAHITE, A NEW MINERAL AND ASSOCIATED COPPER TELLURATES FROM THE CENTENNIAL EUREKA MINE, TINTIC DISTRICT, JUAB COUNTY, UTAH Andrew C. Roberts and John A. R. Stirling Geological Survey of Canada 601 Booth Street Ottawa, Ontario, Canada K IA OE8 Alan J. Criddle Martin C. Jensen Elizabeth A. Moffatt Department of Mineralogy 121-2855 Idlewild Drive Canadian Conservation Institute The Natural History Museum Reno, Nevada 89509 1030 Innes Road Cromwell Road Ottawa, Ontario, Canada K IA OM5 London, England SW7 5BD Wendell E. Wilson Mineralogical Record 4631 Paseo Tubutama Tucson, Arizona 85750 ABSTRACT Utahite, idealized as CusZn;(Te6+04JiOH)8·7Hp, is triclinic, fracture. Utahite is vitreous, brittle and nonfluorescent; hardness space-group choices P 1 or P 1, with refined unit-cell parameters (Mohs) 4-5; calculated density 5.33 gtcm' (for empirical formula), from powder data: a = 8.794(4), b = 9996(2), c = 5.660(2);\, a = 5.34 glcm' (for idealized formula). In polished section, utahite is 104.10(2)°, f3 = 90.07(5)°, y= 96.34(3YO, V = 479.4(3) ;\3, a:b:c = slightly bireflectant and nonpleochroic. 1n reflected plane-polar- 0.8798:1 :0.5662, Z = 1. The strongest five reflections in the X-ray ized light in air it is very pale brown, with ubiquitous pale emerald- powder pattern are (dA(f)(hkl)]: 9.638(100)(010); 8.736(50)(100); green internal reflections. The anisotropy is unknown because it is 4.841(100)(020); 2.747(60)(002); 2.600(45)(301, 311). The min- masked by the internal reflections. Averaged electron-microprobe eral is an extremely rare constituent on the dumps of the Centen- analyses yielded CuO = 25.76, ZnO = 15.81, Te03 = 45.47, H20 nial Eureka mine, Tintic district, Juab County, Utah, where it (by difference) {12.96], total = {100.00] weight %, corresponding occurs both as isolated 0.6-mm clusters of tightly bound aggre- to CU49;Zn29lTe6+04)39l0H)79s' 7.1H20, based on 0 = 31.
  • Thirty-Fourth List of New Mineral Names

    Thirty-Fourth List of New Mineral Names

    MINERALOGICAL MAGAZINE, DECEMBER 1986, VOL. 50, PP. 741-61 Thirty-fourth list of new mineral names E. E. FEJER Department of Mineralogy, British Museum (Natural History), Cromwell Road, London SW7 5BD THE present list contains 181 entries. Of these 148 are Alacranite. V. I. Popova, V. A. Popov, A. Clark, valid species, most of which have been approved by the V. O. Polyakov, and S. E. Borisovskii, 1986. Zap. IMA Commission on New Minerals and Mineral Names, 115, 360. First found at Alacran, Pampa Larga, 17 are misspellings or erroneous transliterations, 9 are Chile by A. H. Clark in 1970 (rejected by IMA names published without IMA approval, 4 are variety because of insufficient data), then in 1980 at the names, 2 are spelling corrections, and one is a name applied to gem material. As in previous lists, contractions caldera of Uzon volcano, Kamchatka, USSR, as are used for the names of frequently cited journals and yellowish orange equant crystals up to 0.5 ram, other publications are abbreviated in italic. sometimes flattened on {100} with {100}, {111}, {ill}, and {110} faces, adamantine to greasy Abhurite. J. J. Matzko, H. T. Evans Jr., M. E. Mrose, lustre, poor {100} cleavage, brittle, H 1 Mono- and P. Aruscavage, 1985. C.M. 23, 233. At a clinic, P2/c, a 9.89(2), b 9.73(2), c 9.13(1) A, depth c.35 m, in an arm of the Red Sea, known as fl 101.84(5) ~ Z = 2; Dobs. 3.43(5), D~alr 3.43; Sharm Abhur, c.30 km north of Jiddah, Saudi reflectances and microhardness given.
  • Utahite Cu5zn3(Te6+O4)4(OH)8 • 7H2O

    Utahite Cu5zn3(Te6+O4)4(OH)8 • 7H2O

    6+ Utahite Cu5Zn3(Te O4)4(OH)8 • 7H2O c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Triclinic. Point Group: 1or1. Prismatic to thin tabular to bladed crystals, elongated along [001], showing {010} and {001}, in parallel to subparallel aggregates, to 0.6 mm, also as sheaves and bow tielike groups. Physical Properties: Fracture: Uneven. Tenacity: Brittle. Hardness = ∼4–5 D(meas.) = n.d. D(calc.) = 5.33 Optical Properties: Translucent. Color: Pale blue to blue-green. Streak: Pale blue. Luster: Vitreous to pearly. Optical Class: [Biaxial.] n = [1.83–1.90] α = n.d. β = n.d. γ = n.d. 2V(meas.) = n.d. Cell Data: Space Group: P 1or P 1. a = 8.794(4) b = 9.996(2) c = 5.660(2) α = 104.10(2)◦ β =90.07(5)◦ γ =96.34(3)◦ Z=1 X-ray Powder Pattern: Centennial Eureka mine, Utah, USA. 9.638 (100), 4.841 (100), 2.747 (60), 8.736 (50), 2.600 (45), 6.862 (40), 6.172 (40) Chemistry: (1) (2) TeO3 45.47 45.54 CuO 25.76 25.78 ZnO 15.81 15.83 H2O [12.96] 12.85 Total [100.00] 100.00 (1) Centennial Eureka mine, Utah, USA; by electron microprobe, average of six analyses, 1− H2O by difference, total Te as TeO3, (OH) and H2O confirmed by IR; corresponds to • • Cu4.98Zn2.99(TeO4)3.98(OH)8 7.1H2O. (2) Cu5Zn3(TeO4)4(OH)8 7H2O. Occurrence: A very rare secondary mineral found on dump material from the oxidized zone of a Cu–Zn–Te-bearing hydrothermal ore deposit.
  • Design Rules for Discovering 2D Materials from 3D Crystals

    Design Rules for Discovering 2D Materials from 3D Crystals

    Design Rules for Discovering 2D Materials from 3D Crystals by Eleanor Lyons Brightbill Collaborators: Tyler W. Farnsworth, Adam H. Woomer, Patrick C. O'Brien, Kaci L. Kuntz Senior Honors Thesis Chemistry University of North Carolina at Chapel Hill April 7th, 2016 Approved: ___________________________ Dr Scott Warren, Thesis Advisor Dr Wei You, Reader Dr. Todd Austell, Reader Abstract Two-dimensional (2D) materials are championed as potential components for novel technologies due to the extreme change in properties that often accompanies a transition from the bulk to a quantum-confined state. While the incredible properties of existing 2D materials have been investigated for numerous applications, the current library of stable 2D materials is limited to a relatively small number of material systems, and attempts to identify novel 2D materials have found only a small subset of potential 2D material precursors. Here I present a rigorous, yet simple, set of criteria to identify 3D crystals that may be exfoliated into stable 2D sheets and apply these criteria to a database of naturally occurring layered minerals. These design rules harness two fundamental properties of crystals—Mohs hardness and melting point—to enable a rapid and effective approach to identify candidates for exfoliation. It is shown that, in layered systems, Mohs hardness is a predictor of inter-layer (out-of-plane) bond strength while melting point is a measure of intra-layer (in-plane) bond strength. This concept is demonstrated by using liquid exfoliation to produce novel 2D materials from layered minerals that have a Mohs hardness less than 3, with relative success of exfoliation (such as yield and flake size) dependent on melting point.
  • Frederick Augustus Genth. 1820-1898

    Frederick Augustus Genth. 1820-1898

    MEMOIR FREDERICK AUGUSTUS GENTH. 1820-1898. GEORGE F. BARKER. READ BEFORE THE NATIONAL ACADKMV, No vEM unit 12, 1901. (30) 201 BIOGRAPHICAL MEMOIR OF FREDERICK AUGUSTUS GENTH. The pure sciences are sometimes classified as independent and dependent sciences—i. e., as resting upon data solely their own or upon data borrowed from other sciences. Mathematics, physics, and chemistry may be adduced as instances of the former class of sciences; astronomy, mineralogy, and biology as instances of the latter class. Without the fundamental prin- ciples of mathematics and physics, for example, neither mathe- matical nor physical astronomy is possible. Moreover, the properties of minerals are classified either by their chemical composition, by their crystalline form, or by their optical prop- erties ; so that mineralogy as a science is dependent mainly upon physics and chemistry, and to some extent also upon mathe- matics ; so botany and zoology, except in so far as they are clas- sificatorv, are based upon the chemical and physical character- istics of the organisms they investigate and the forms they classify. Our eminent associate who is the subject of the pres- ent memoir took a high rank as an investigator in each of these divisions. His researches in chemistry are equaled in impor- tance only by those which he made in mineralogy. Both were of the highest order, and secured for him a very prominent po- sition among men of science. FRIEDRICH AUGUST LUDWIG KARL WILHELM GENTH was born in the village of Waechtersbach, in Hesse, on the 17th of May, 1820. On his father's side his family was an old Hesse-Nassau family, living for the most part in the neighborhood of Wies- baden.
  • New Mineral Names*

    New Mineral Names*

    American Mineralogist, Volume 71, pages 227-232, 1986 NEW MINERAL NAMES* Pers J. Dulw, Gsoncr Y. CHao, JonN J. FrrzperRrcr, RrcHeno H. LaNcr-nv, MIcHeer- FrerscHnn.aNo JRNBIA. Zncznn Caratiite* sonian Institution. Type material is at the Smithsonian Institu- tion under cataloguenumbers 14981I and 150341.R.H.L. A. M. Clark, E. E. Fejer, and A. G. Couper (1984) Caratiite, a new sulphate-chlorideofcopper and potassium,from the lavas of the 1869 Vesuvius eruption. Mineralogical Magazine, 48, Georgechaoite* 537-539. R. C. Boggsand S. Ghose (1985) GeorgechaoiteNaKZrSi3Or' Caratiite is a sulphate-chloride of potassium and copper with 2HrO, a new mineral speciesfrom Wind Mountain, New Mex- ideal formula K4Cu4Or(SO4).MeCl(where Me : Na and,zorCu); ico. Canadian Mineralogist, 23, I-4. it formed as fine greenacicular crystalsin lava of the 1869 erup- S. Ghose and P. Thakur (1985) The crystal structure of george- tion of Mt. Vesuvius,Naples, Italy. Caratiite is tetragonal,space chaoite NaKZrSi3Or.2HrO. Canadian Mineralogist, 23, 5-10. group14; a : 13.60(2),c : a.98(l) A, Z:2.The strongestlines of the powder partern arc ld A, I, hkll: 9.61(l00Xl l0); Electron microprobe analysis yields SiO, 43.17, 7-xO229.51, 6.80(80X200); 4.296(60X3 I 0); 3.0I 5( 100b)(a 20,32r); 2.747 (7 0) NarO 7.42,IGO I1.28, HrO 8.63,sum 100.010/0,corresponding (4 I t); 2.673(60X5 I 0); 2.478(60)(002); 2. 3 8 8(70Xa 3 l, 50I ); to empirical formula Na, orl(oru(Zro rrTio o,Feo o,)Si, or Oe' 2.
  • Joëlbruggerite, Pb3zn3(Sb5+,Te6+)

    Joëlbruggerite, Pb3zn3(Sb5+,Te6+)

    American Mineralogist, Volume 94, pages 1012–1017, 2009 5+ 6+ 5+ Joëlbruggerite, Pb3Zn3(Sb ,Te )As2O13(OH,O), the Sb analog of dugganite, from the Black Pine mine, Montana STUART J. MILLS ,1,* UWE KOLITSCH ,2 RITSURO MIYAWAKI ,3 LEE A. GROAT ,1 AND GLENN POIRIER 4 1Department of Earth and Ocean Sciences, University of British Columbia, 6339 Stores Road, Vancouver, British Columbia V6T 1Z4, Canada 2Mineralogisch-Petrographische Abteilung, Naturhistorisches Museum Wien, Burgring 7, A-1010 Wien, Austria 3Department of Geology, National Museum of Nature and Science, 3-23-1, Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan 4Mineral Sciences Division, Canadian Museum of Nature, P.O. Box 3443, Station D, Ottawa, Ontario K1P 6P4, Canada ABSTRACT 5+ 6+ Joëlbruggerite, ideally Pb3Zn3(Sb ,Te )As2O13(OH,O), is a new arsenate mineral (IMA 2008-034) and the Sb5+ analog of dugganite, from the Black Pine mine, 14.5 km northwest of Philipsburg, Granite County, Montana. It is usually found perched on mimetite; other species that may be present include malachite, azurite, pseudomalachite, chalcocite, beudantite-corkite, duftite, dugganite, and kuksite, in milky quartz veins. Joëlbruggerite occurs as barrel-shaped or prismatic crystals up to about 50 µm across in various shades of purple. The crystals have an adamantine luster and a white streak. Mohs hardness is about 3. The fracture is irregular, and the tenacity is brittle. Joëlbruggerite crystals are uniaxial (–), with a calculated refractive index of n = 1.993, and weakly pleochroic: X = Y = gray, Z = purple; absorption: Z > X = Y. Crystals show straight extinction and are length-fast. The empirical chemical formula (mean of 5 electron microprobe analyses) calculated on the basis of 14 [O + OH] 2+ 5+ 6+ anions is Pb3.112(Zn2.689Fe0.185)Σ2.874(Sb0.650Te 0.451)Σ1.101(As1.551P0.203Si0.160)Σ1.914O13.335(OH)0.665.
  • A New Mineral from Poзos De Caldas, Minas Gerais

    A New Mineral from Poзos De Caldas, Minas Gerais

    Ñïèñîê ëèòåðàòóðû Ïåêîâ È. Â., Âèíîãðàäîâà Ð. À., ×óêàíîâ Í. Â., Êóëèêîâà È. Ì. Î ìàãíåçèàëüíûõ è êîáàëüòîâûõ àð- ñåíàòàõ ãðóïï ôàéðôèëäèòà è ðîçåëèòà / ÇÂÌÎ. 2001. ¹ 4. Ñ. 10—23. 4+ Burns P. C., Clark C. M., Gault R. A. Juabite, CaCu10(Te O3)4(AsO4)4(OH)2(H2O)4: crystal structure and revision of the chemical formula / Canad. Miner. 2000a. Vol. 38. P. 823—830. Burns P. C., Pluth J. J., Smith J. V., Eng P., Steele I., Housley R. M. Quetzalcoatlite: A new octahed- ral-tetrahedral structure from a 2 % 2 % 40 ìm3 crystal at the Advances Photon Source-GSE-CARS Facility / Amer. Miner. 2000b. Vol. 85. P. 604—607. 4+ 6+ Frost R. L., Keefe E. C. Raman spectroscopic study of kuranakhite PbMn Te O6 — a rare tellurate mi- neral / J. Raman Spectroscopy. 2009. Vol. 40(3). P. 249—252. Grice J. D., Roberts A. C. Frankhawthorneite, a unique HCP framework structure of a cupric tellurate / Canad. Miner. 1995. Vol. 33. P. 823—830. Lam A. E., Groat L. A., Ercit T. S. The crystal structure of dugganite, Pb3Zn3TeAs2O14 / Canad. Miner. 1998. Vol. 36. P. 823—830. Mandarino J. A. The Gladstone—Dale relationship: Part IV. The compatibility concept and its applicati- on / Canad. Miner. 1981. Vol. 19. P. 441—450. Pekov I. V., Jensen M. C., Roberts A. C., Nikischer A. J. A new mineral from an old locality: eurekadum- pite takes seventeen years to characterize / Mineral News. 2010. Vol. 26(2). P. 1—3. Pertlik F. Der Strukturtyp von Emmonsit, {Fe2(TeO3)3$H2O}$xH2O(x = 0—1) / Tschermaks Miner.
  • Geology, Mines, & Minerals, Tombstone, Arizona

    Geology, Mines, & Minerals, Tombstone, Arizona

    Geology, Mines, & Minerals, Tombstone, Arizona by Jan C. Rasmussen Jan Rasmussen Geology, Mines, Minerals of Tombstone April 14, 2012 Acknowledgements • SRK Consulting, Tucson • Burton Devere – Bonanzas to Borrascas • Peter Megaw – photomicrograph specimens • Sugar White – photography of Megaw specimens • TGMS 2012 show displays • Mindat.org • Jim Briscoe Jan Rasmussen Geology, Mines, Minerals of Tombstone April 14, 2012 Location: Cochise Co., SE Arizona Source: SRK Consulting Jan Rasmussen Geology, Mines, Minerals of Tombstone April 14, 2012 Geologic map, Cochise County Source: AZGS map 35 Jan Rasmussen Geology, Mines, Minerals of Tombstone April 14, 2012 Geologic map, Tombstone Hills Source: Drewes, USGS geologic map Jan Rasmussen Geology, Mines, Minerals of Tombstone April 14, 2012 Gilluly geologic map Jan Rasmussen Geology, Mines, Minerals of Tombstone April 14, 2012 Tombstone Hills, looking north Jan Rasmussen Geology, Mines, Minerals of Tombstone April 14, 2012 Paleozoic Jan and Colina Limestone (Permian) Jan Rasmussen Geology, Mines, Minerals of Tombstone April 14, 2012 Bisbee Group – Lower Cretaceous Jan Rasmussen Geology, Mines, Minerals of Tombstone April 14, 2012 Laramide orogeny Orogenic Age Phase (Ma) Sedimentation Magmatism Structures Resources widespread, 2-mica, garnet- muscovite granitoid stocks, SW-directed, low-angle thrusts mesothermal, Pb-Zn-Ag veins, minor batholithic sills, aplo-pegmatite widespread, shallowly dipping mylonitic Cu-Au veins, Au in quartz veins, Late 55-43 none dikes, peraluminous, calc-alkalic zones,
  • Shin-Skinner January 2018 Edition

    Shin-Skinner January 2018 Edition

    Page 1 The Shin-Skinner News Vol 57, No 1; January 2018 Che-Hanna Rock & Mineral Club, Inc. P.O. Box 142, Sayre PA 18840-0142 PURPOSE: The club was organized in 1962 in Sayre, PA OFFICERS to assemble for the purpose of studying and collecting rock, President: Bob McGuire [email protected] mineral, fossil, and shell specimens, and to develop skills in Vice-Pres: Ted Rieth [email protected] the lapidary arts. We are members of the Eastern Acting Secretary: JoAnn McGuire [email protected] Federation of Mineralogical & Lapidary Societies (EFMLS) Treasurer & member chair: Trish Benish and the American Federation of Mineralogical Societies [email protected] (AFMS). Immed. Past Pres. Inga Wells [email protected] DUES are payable to the treasurer BY January 1st of each year. After that date membership will be terminated. Make BOARD meetings are held at 6PM on odd-numbered checks payable to Che-Hanna Rock & Mineral Club, Inc. as months unless special meetings are called by the follows: $12.00 for Family; $8.00 for Subscribing Patron; president. $8.00 for Individual and Junior members (under age 17) not BOARD MEMBERS: covered by a family membership. Bruce Benish, Jeff Benish, Mary Walter MEETINGS are held at the Sayre High School (on Lockhart APPOINTED Street) at 7:00 PM in the cafeteria, the 2nd Wednesday Programs: Ted Rieth [email protected] each month, except JUNE, JULY, AUGUST, and Publicity: Hazel Remaley 570-888-7544 DECEMBER. Those meetings and events (and any [email protected] changes) will be announced in this newsletter, with location Editor: David Dick and schedule, as well as on our website [email protected] chehannarocks.com.