General Vihorlatite Information Chemical Formula: |
Bi24Se17Te4 |
Composition: |
Molecular Weight = 6,525.04 gm |
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Bismuth 70.14 % Bi |
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Tellurium 8.02 % Te |
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Selenium 21.06 % Se |
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Sulfur 0.79 % S |
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100.00 % |
Empirical Formula: |
Bi21.9Se17.4Te4.1S1.6 |
Environment: |
Occurs in quartz-opal veinlets or secondary quartzites as anhedral grains. Tetradymite group. |
IMA Status: |
Approved IMA 1988 (Dana # Added) |
Locality: |
Poruba, Vihorlat Mountains, Slovakia. Link to MinDat.org Location Data. |
Name Origin: |
Named for the locality. |
Synonym: |
IMA1988-047 |
| | Vihorlatite Image
Images:
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Vihorlatite Crystallography Axial Ratios: |
a:c = 1:20.33086 |
Cell Dimensions: |
a = 4.2797, c = 87.01, Z = 1; V = 1,380.15 Den(Calc)= 7.85 |
Crystal System: |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1 |
X Ray Diffraction: |
By Intensity(I/Io): 3.116(1)(1.0.15), 2.282(0.755)(0.1.30), 4.55(0.554)(0.0.19),1.934(0.428)(1.1.19), 1.767(0.315)(0.2.15), |
Crystal Structure:
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Mouse
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| Physical Properties of Vihorlatite Color: |
Gray. |
Density: |
8 |
Diaphaneity: |
Opaque |
Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
Habit: |
Triangular Crystals - Occurs as triangular shaped crystals. |
Luster: |
Metallic |
| Calculated Properties of Vihorlatite Electron Density: |
Bulk Density (Electron Density)=6.37 gm/cc |
note: Specific Gravity of Vihorlatite =7.85 gm/cc. Fermion Index: |
Fermion Index = 0.02 |
Boson Index = 0.98 Photoelectric: |
PEVihorlatite =1,439.18 barns/electron |
U=PEVihorlatite x rElectron Density=9,169.95 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Vihorlatite is Not Radioactive | Vihorlatite Classification Dana Class: |
02.11.07.07 (02)Sulfides - Including Selenides and Tellurides |
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(02.11)where Am Bn Xp, with (m+n):p=2:3 |
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(02.11.07)Tetradymite Group (Trigonal: R-3m) |
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Strunz Class: |
02.DC.05e 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.D - Metal Sulfides, M:S = 3:4 and 2:3 |
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02.DC -Variable M:S |
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| Other Vihorlatite Information References: |
NAME( AmMin, v93:254) PHYS. PROP.(AmMin, v93:254) |
See Also: |
Links to other databases for Vihorlatite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Vihorlatite using: Visit our Advertisers for Vihorlatite : A Bijoux Google Search for VihorlatiteAdam's Minerals Google Search for Vihorlatite Cape Minerals Google Search for Vihorlatite Dakota Matrix Minerals Google Search for Vihorlatite Excalibur Mineral Corp. Google Search for Vihorlatite Exceptional Minerals Google Search for Vihorlatite John Betts Fine Minerals Search for Vihorlatite McDougall Minerals Google Search for Vihorlatite Mineral News Website Link Rock and Mineral Shows Google Search for Vihorlatite Weinrich Minerals, Inc. Google Search for Vihorlatite Ask about Vihorlatite here : Print or Cut-and-Paste your Vihorlatite Specimen Label here :
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