General Weissbergite Information Chemical Formula: |
TlSbS2 |
Composition: |
Molecular Weight = 390.27 gm |
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Thallium 52.37 % Tl |
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Antimony 31.20 % Sb |
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Sulfur 16.43 % S |
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______ |
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100.00 % |
Empirical Formula: |
TlSbS2 |
Environment: |
In late stage hydrothermal veins that brecciate silicified dolomitic carbonate rocks. |
IMA Status: |
Approved IMA 1978 |
Locality: |
East ore zone, Carlin mine, Elko, Eureka County, Nevada, USA Link to MinDat.org Location Data. |
Name Origin: |
Named for Byron G. Weissberg, Chemistry division, D.S.I.R., New Zeland. |
Name Pronunciation: |
Weissbergite + Pronunciation |
Synonym: |
ICSD 35498 |
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PDF 29-1331 |
| | Weissbergite Image
Images:
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Weissbergite Crystallography Axial Ratios: |
a:b:c =1.8593:1:0.9531 |
Cell Dimensions: |
a = 11.9, b = 6.4, c = 6.1, Z = 4; alpha = 109.9°, beta = 81.8°, gamma = 105.4° V = 416.85 Den(Calc)= 6.22 |
Crystal System: |
Triclinic - PedialH-M Symbol (1) Space Group: P1 |
X Ray Diffraction: |
By Intensity(I/Io): 2.971(1), 3.583(0.09), 3.651(0.09), |
Crystal Structure:
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Mouse
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| Physical Properties of Weissbergite Cleavage: |
{???} Perfect, {???} Very Good, {???} Very Good |
Color: |
Steel gray. |
Density: |
5.79 |
Diaphaneity: |
Opaque |
Habit: |
Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks. |
Habit: |
Striated - Parallel lines on crystal surface or cleavage face. |
Hardness: |
1.5 - Between Talc and Gypsum |
Luster: |
Metallic |
Streak: |
reddish gray |
| Optical Properties of Weissbergite RL Anisotrophism: |
Strong, blue-green. |
RL Color: |
Creamy white. |
RL Pleochroism: |
Weak. |
Reflectivity |
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| Calculated Properties of Weissbergite Electron Density: |
Bulk Density (Electron Density)=5.18 gm/cc |
note: Specific Gravity of Weissbergite =6.16 gm/cc. Fermion Index: |
Fermion Index = 0.0012324693 |
Boson Index = 0.9987675307 Photoelectric: |
PEWeissbergite =1,026.67 barns/electron |
U=PEWeissbergite x rElectron Density=5,315.26 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Weissbergite is Not Radioactive | Weissbergite Classification Dana Class: |
03.07.07.01 (03)Sulfides - Sulfosalts |
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(03.07)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.07.07)Dana Group |
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Strunz Class: |
02.HD.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.H - Sulfosalts of SnS Archetype |
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02.HD -With Tl |
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| Other Weissbergite Information References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
See Also: |
Links to other databases for Weissbergite : |
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 Weissbergite using: Visit our Advertisers for Weissbergite : A Bijoux Google Search for WeissbergiteAdam's Minerals Google Search for Weissbergite Cape Minerals Google Search for Weissbergite Dakota Matrix Minerals Google Search for Weissbergite Excalibur Mineral Corp. Google Search for Weissbergite Exceptional Minerals Google Search for Weissbergite John Betts Fine Minerals Search for Weissbergite McDougall Minerals Google Search for Weissbergite Mineral News Website Link Rock and Mineral Shows Google Search for Weissbergite Weinrich Minerals, Inc. Google Search for Weissbergite Ask about Weissbergite here : Print or Cut-and-Paste your Weissbergite Specimen Label here :
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