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Vaughanite Mineral Data
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General Vaughanite Information
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 Chemical Formula: |
TlHgSb4S7 |
| Composition: |
Molecular Weight = 1,116.44 gm |
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Thallium 18.31 % Tl |
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Mercury 17.97 % Hg |
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Antimony 43.62 % Sb |
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Sulfur 20.11 % S |
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______ |
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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 Paakkonenite Stibarsen
Comments: B&W image of vaughanite (Va) aggregate surrounding a fibrous bundle of paakkonenite (Pfi) and associated with stibarsen (Star) and realgar (Re). Oil immersion. (CanMin, v53:369).
Location: Rare primary constituent of the Golden Giant orebody of the Hemlo gold deposit, Hemlo, Ontario, Canada.
Scale: See Image.
© Canadian Mineralogist |
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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 - Pedial H-M Symbol (1) Space Group: P1 ? |
| X Ray Diffraction: |
By Intensity(I/Io): 4.204(1), 3.313(0.6), 2.749(0.4), |
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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 |
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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 |
| 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 |
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(03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.08.15)Dana Group |
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03.08.15.01 Vaughanite TlHgSb4S7 P1 ? 1 |
| Strunz Class: |
02.LA.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.L - Unclassified Sulfosalts |
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02.LA -Without essential Pb |
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02.LA.20 Vaughanite TlHgSb4S7 P1 ? 1 |
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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
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Print or Cut-and-Paste your Vaughanite Specimen Label here :
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Vaughanite
TlHgSb4S7
Dana No: 03.08.15.01 Strunz No: 02.LA.20
Locality:
Notes:
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