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Austinite Mineral Data |
General Austinite Information |
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CaZn(AsO4)(OH) | ||
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Molecular Weight = 261.39 gm | ||
Calcium 15.33 % Ca 21.45 % CaO | |||
Zinc 25.02 % Zn 31.14 % ZnO | |||
Arsenic 28.66 % As 43.96 % As2O5 | |||
Hydrogen 0.39 % H 3.45 % H2O | |||
Oxygen 30.60 % O | |||
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100.00 % 100.00 % = TOTAL OXIDE | |||
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CaZn(AsO4)(OH) | ||
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A rare secondary mineral in the oxidized zone of some arsenic-rich base-metal deposits. | ||
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Valid Species (Pre-IMA) 1935 | ||
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In the USA, in the Western Utah mine, Gold Hill, Tooele Co., Utah; at the Mohawk mine, Clark Mountains, San Bernardino Co., California; from the Table Mountain mine, Galiuro Mountains, Link to MinDat.org Location Data. | ||
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To honor Professor Austin Flint Rogers (1877-1957), American mineralogist, Stanford University, Palo Alto, California, USA. | ||
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Austinite + Pronunciation ![]() |
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ICSD 63285 | ||
PDF 37-445 | |||
Austinite Image | |||
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Austinite Crystallography |
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a:b:c =0.8303:1:0.6561 | ||
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a = 7.5092, b = 9.0438, c = 5.9343, Z = 4; V = 403.01 Den(Calc)= 4.31 | ||
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Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 212121 | ||
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By Intensity(I/Io): 2.637(1), 2.801(1), 3.171(1), | ||
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Physical Properties of Austinite |
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{110} Good | ||
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Brown, Colorless, Green, Yellowish white, White. | ||
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4.13 | ||
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Transparent to Translucent | ||
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Brittle - Uneven - Very brittle fracture producing uneven fragments. | ||
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4-4.5 - Between Fluorite and Apatite | ||
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Subadamantine | ||
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white | ||
Optical Properties of Austinite |
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CI meas= -0.05 (Good) - where the CI = (1-KPDmeas/KC) CI calc= -0.006 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1783,KPDmeas= 0.186,KC= 0.1772 Ncalc = 1.73 - 1.76 |
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Biaxial (+), a=1.759, b=1.763, g=1.783, bire=0.0240, 2V(Calc)=50, 2V(Meas)=47. | ||
Calculated Properties of Austinite |
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Bulk Density (Electron Density)=4.09 gm/cc note: Specific Gravity of Austinite =4.31 gm/cc. |
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Fermion Index = 0.01 Boson Index = 0.99 |
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PEAustinite = 34.14 barns/electron U=PEAustinite x rElectron Density= 139.61 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Austinite is Not Radioactive |
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Austinite Classification |
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41.05.01.03 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
(41.05)where (A B)2 (XO4) Zq | |||
(41.05.01)Adelite Group | |||
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08.BH.35 08 - PHOSPHATES, ARSENATES, VANADATES | ||
08.B - Phosphates, etc. with Additional Anions, without H2O | |||
08.BH -With medium-sized and large cations, (OH,etc.):RO4 = 1:1 | |||
Other Austinite Information |
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NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
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Links to other databases for Austinite : 1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 6 - Franklin Minerals(Dunn) 7 - GeoScienceWorld 8 - Glendale Community College 9 - Google Images 10 - Google Scholar 11 - Handbook of Mineralogy (MinSocAm) 12 - Handbook of Mineralogy (UofA) 13 - MinDAT 14 - Mineralienatlas (Deutsch) 15 - Online Mineral Museum 16 - QUT Mineral Atlas 17 - Ruff.Info 18 - WWW-MINCRYST Search for Austinite using: Visit our Advertisers for Austinite : Ask about Austinite here : Print or Cut-and-Paste your Austinite Specimen Label here :
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