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Bernardite Mineral Data |
General Bernardite Information |
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Tl(As,Sb)5S8 | ||
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Molecular Weight = 952.59 gm | ||
Thallium 21.46 % Tl | |||
Antimony 31.95 % Sb | |||
Arsenic 19.66 % As | |||
Sulfur 26.93 % S | |||
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100.00 % | |||
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TlAs2.5Sb2.5S8 | ||
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Approved IMA 1989 | ||
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Lengenbach, Binn, Switzerland; Allchar, Macedonia. Link to MinDat.org Location Data. | ||
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Names in 1989 for Jan Bernard (b.1928), Czech mineralogist. | ||
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Bernardite + Pronunciation ![]() |
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ICSD 63481 | ||
PDF 46-1339 | |||
Bernardite Crystallography |
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a:b:c =1.9466:1:1.3373 | ||
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a = 15.647, b = 8.038, c = 10.75, Z = 4; beta = 91.27° V = 1,351.70 Den(Calc)= 4.68 | ||
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Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c | ||
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By Intensity(I/Io): 3.06(1), 4.28(0.74), 4.46(0.65), | ||
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Physical Properties of Bernardite |
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None | ||
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Black. | ||
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4.5 | ||
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Opaque | ||
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2 - Gypsum | ||
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Earthy (Dull) | ||
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dark red | ||
Calculated Properties of Bernardite |
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Bulk Density (Electron Density)=4.12 gm/cc note: Specific Gravity of Bernardite =4.68 gm/cc. |
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Fermion Index = 0.002019714 Boson Index = 0.997980286 |
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PEBernardite = 481.57 barns/electron U=PEBernardite x rElectron Density=1,982.63 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bernardite is Not Radioactive |
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Bernardite Classification |
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03.08.14.02 (03)Sulfides - Sulfosalts | ||
(03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals | |||
(03.08.14)Dana Group | |||
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02.HD.50 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf | ||
02.H - Sulfosalts of SnS Archetype | |||
02.HD -With Tl | |||
Other Bernardite Information |
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NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.75,p1209,1990) | ||
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Links to other databases for Bernardite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Bernardite using: Visit our Advertisers for Bernardite : Ask about Bernardite here : Print or Cut-and-Paste your Bernardite Specimen Label here :
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