Vihorlatite Mineral Data

Vihorlatite Mineral Data
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General Vihorlatite Information

Help on Chemical Formula: Chemical Formula: Bi24Se17Te4
Help on Composition: Composition: Molecular Weight = 6,525.04 gm
   Bismuth    70.14 %  Bi
   Tellurium   8.02 %  Te
   Selenium   21.06 %  Se
   Sulfur      0.79 %  S
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: Bi21.9Se17.4Te4.1S1.6
Help on Environment: Environment: Occurs in quartz-opal veinlets or secondary quartzites as anhedral grains. Tetradymite group.
Help on IMA Status: IMA Status: Approved IMA 1988 (Dana # Added)
Help on Locality: Locality: Poruba, Vihorlat Mountains, Slovakia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA1988-047
 

Vihorlatite Image

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Vihorlatite

Comments: Dark gray sub-metallic platy vihorlatite in fine grained matrix.
Location: Poruba, Vohorlat Mountains, Vychodoslovensky, Slovakia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Vihorlatite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:20.33086
Help on Cell Dimensions: Cell Dimensions: a = 4.2797, c = 87.01, Z = 1; V = 1,380.15 Den(Calc)= 7.85
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1
Help on X Ray Diffraction: 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),
Click Here for Large Vihorlatite Structure Window Crystal Structure:

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Skala R , Ondrus P , Veselovky F , Taborsky Z , Duda R , European Journal of Mineralogy , 19 (2007) p.255-265, Vihorlatite, Bi24Se17Te4, a new mineral of the tetradymite group from Vihorlat Mts,, Slovakia, Locality: Vihorlat Mountains, eastern Slovakia

 

Physical Properties of Vihorlatite

Help on Color: Color: Gray.
Help on Density: Density: 8
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Habit: Habit: Triangular Crystals - Occurs as triangular shaped crystals.
Help on Luster: Luster: Metallic
 

Calculated Properties of Vihorlatite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.37 gm/cc
note: Specific Gravity of Vihorlatite =7.85 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEVihorlatite =1,439.18 barns/electron
U=PEVihorlatite x rElectron Density=9,169.95 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vihorlatite is Not Radioactive
 

Vihorlatite Classification
Help on Dana Class: Dana Class: 02.11.07.07 (02)Sulfides - Including Selenides and Tellurides
  (02.11)where Am Bn Xp, with (m+n):p=2:3
  (02.11.07)Tetradymite Group (Trigonal: R-3m)
 
02.11.07.01 Tetradymite Bi2Te2S R 3m 3 2/m
 
02.11.07.02 Tellurobismuthite Bi2Te3 R 3m 3 2/m
 
02.11.07.03 Tellurantimony Sb2Te3 R 3m 3 2/m
 
02.11.07.04 Paraguanajuatite Bi2(Se,S)3 R 3m 3 2/m
 
02.11.07.05 Kawazulite Bi2(Te,Se,S)3 R 3m 3 2/m
 
02.11.07.06 Skippenite Bi2Se2(Te,S) R 3m 3 2/m
 
02.11.07.07 Vihorlatite! Bi24Se17Te4 P 3m1 3 2/m
Help on Strunz Class: Strunz Class: 02.DC.05e 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.D - Metal Sulfides, M:S = 3:4 and 2:3
  02.DC -Variable M:S
 
02.DC.05e Baksanite! Bi6Te2S3 P 3m1 3 2/m
 
02.DC.05e Sztrokayite* Bi3TeS2 Trig ? Trig
 
02.DC.05e Protojoseite* Bi4TeS2(?) R 3m 3 2/m
 
02.DC.05e Vihorlatite! Bi24Se17Te4 P 3m1 3 2/m
 

Other Vihorlatite Information
Help on References: References: NAME( AmMin, v93:254) PHYS. PROP.(AmMin, v93:254)
Help on See Also: See Also: Links to other databases for Vihorlatite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Vihorlatite Specimen Label here :

Vihorlatite

Bi24Se17Te4
Dana No: 02.11.07.07 Strunz No: 02.DC.05e
Locality:

 

Notes: