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General Vaughanite Information |
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 Chemical Formula: |
TlHgSb4S7 | ||
| Composition: |
Molecular Weight = 1,116.44 gm | ||
| Thallium 18.31 % Tl | |||
| Mercury 17.97 % Hg | |||
| Antimony 43.62 % Sb | |||
| Sulfur 20.11 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
TlHgSb4S7 | ||
| IMA Status: |
Approved IMA 1989 | ||
| Locality: |
Hemlo gold deposit, near Marathon, Ontario, Canada. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for David J. Vaughan (1946-), English mineralogist. | ||
| Name Pronunciation: |
Vaughanite + Pronunciation  |
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Vaughanite Image | |||
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Images:
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Vaughanite Crystallography |
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| Axial Ratios: |
a:b:c =0.6815:1:0.4466 | ||
| Cell Dimensions: |
a = 9.012, b = 13.223, c = 5.906, Z = 2; alpha = 93.27°, beta = 95.05°, gamma = 109.16° V = 661.15 Den(Calc)= 5.61 | ||
| Crystal System: |
Triclinic - PedialH-M Symbol (1) Space Group: P1 ? | ||
| X Ray Diffraction: |
By Intensity(I/Io): 4.204(1), 3.313(0.6), 2.749(0.4), | ||
Physical Properties of Vaughanite |
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| Cleavage: |
None | ||
| Color: |
Black. | ||
| Diaphaneity: |
Opaque | ||
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes | ||
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. | ||
| Hardness: |
3-3.5 - Calcite-Copper Penny | ||
| Luster: |
Metallic | ||
| Streak: |
black | ||
Calculated Properties of Vaughanite |
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| Electron Density: |
Bulk Density (Electron Density)=4.80 gm/cc note: Specific Gravity of Vaughanite =5.62 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.05 Boson Index = 0.95 |
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| Photoelectric: |
PEVaughanite = 764.05 barns/electron U=PEVaughanite x rElectron Density=3,669.20 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Vaughanite is Not Radioactive |
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Vaughanite Classification |
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| Dana Class: |
03.08.15.01 (03)Sulfides - Sulfosalts | ||
| (03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals | |||
| (03.08.15)Dana Group | |||
| Strunz Class: |
02.LA.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf | ||
| 02.L - Unclassified Sulfosalts | |||
| 02.LA -Without essential Pb | |||
Other Vaughanite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) | ||
| See Also: |
Links to other databases for Vaughanite : 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 Vaughanite using: Visit our Advertisers for Vaughanite : A Bijoux Google Search for VaughaniteAdam's Minerals Google Search for Vaughanite Cape Minerals Google Search for Vaughanite Dakota Matrix Minerals Google Search for Vaughanite Excalibur Mineral Corp. Google Search for Vaughanite Exceptional Minerals Google Search for Vaughanite John Betts Fine Minerals Search for Vaughanite McDougall Minerals Google Search for Vaughanite Mineral News Website Link Rock and Mineral Shows Google Search for Vaughanite Weinrich Minerals, Inc. Google Search for Vaughanite Ask about Vaughanite here : Print or Cut-and-Paste your Vaughanite Specimen Label here :
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