Tsnigriite Mineral Data + 
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- 3.1.12.1 Tsnigriite Ag9SbTe3(S,Se)3 P 2/m,Pm Mono
- II/B.05-02 Argentite* Ag2S I m3m 4/m 3 2/m
- II/B.05-10 Acanthite Ag2S P 21/n 2/m
- II/B.05-30 Naumannite Ag2Se P 212121 2 2 2
- II/B.05-35 Kurilite* (Ag,Au)2(Te,Se,S) P m3n,P 43n Cubic
- II/B.05-40 Hessite Ag2Te P 21/c 2/m
- II/B.05-50 Aguilarite Ag4SeS P 212121 2 2 2
- II/B.05-60 Cervelleite Ag4TeS Unk Cubic
- II/B.05-70 Benleonardite Ag8(Sb,As)Te2S3 Tetra Tetra
- II/B.05-75 Tsnigriite Ag9SbTe3(S,Se)3 P 2/m,Pm Mono
- II/B.05-80 Stutzite Ag5-xTe3,(x=0.24-0.36) P 6/mmm 6/m 2/m 2/m
- II/B.05-90 Empressite AgTe Pmnb 2/m 2/m 2/m
General Tsnigriite Information |
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 Chemical Formula: |
Ag9SbTe3(S,Se)3 | ||
| Composition: |
Molecular Weight = 1,595.01 gm | ||
| Silver 60.87 % Ag | |||
| Antimony 7.63 % Sb | |||
| Tellurium 24.00 % Te | |||
| Selenium 2.48 % Se | |||
| Sulfur 5.03 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Ag9SbTe3S2.5Se0.5 | ||
| Environment: |
Au-Ag deposits. | ||
| IMA Status: |
Approved IMA 1992 | ||
| Locality: |
Vyskovol'tnoye, Tian Sham, Uzbekistan. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named from the initials of the Russian name for the Central Scientice-Research Institute of Geological Prospecting in Moscow. | ||
Search for Tsnigriite Images | |||
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Images:
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Tsnigriite Crystallography |
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| Axial Ratios: |
a:b:c =1.0721:1:2.3516 | ||
| Cell Dimensions: |
a = 8.89, b = 8.292, c = 19.5, Z = 4; beta = 97.02° V = 1,426.68 Den(Calc)= 7.43 | ||
| Crystal System: |
MonoclinicSpace Group: P 2/m,Pm | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.2(1), 3.78(0.7), 4.26(0.5), | ||
Physical Properties of Tsnigriite |
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| Color: |
Dark gray. | ||
| Density: |
7.38 | ||
| Diaphaniety: |
Opaque | ||
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes | ||
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. | ||
| Hardness: |
3.5 - Copper Penny | ||
| Luster: |
Metallic | ||
Calculated Properties of Tsnigriite |
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| Electron Density: |
relectron=6.40 gm/cc |
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| Fermion Index |
Fermion Index = 0.02143 Boson Index = 0.97857 |
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| Photoelectric: |
PETsnigriite = 274.85 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tsnigriite is Not Radioactive |
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Tsnigriite Classification |
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| Dana Class: |
3.1.12.1 (3)Sulfides - Sulfosalts | ||
| (3.1)where z/y > 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals | |||
| (3.1.12)Dana Group | |||
| Strunz Class: |
II/B.05-75 II - Sulfides and sulphosalts | ||
| II/B - Sulfides with metal: sulfur, selenium and tellurium > 1:1, Sulfides, Selenides and Tellurides with predominant Copper and Silver/Gold | |||
| II/B.05 - Achantite - Empresite series | |||
Other Tsnigriite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.79,p389,1994) | ||
| See Also: |
Links to other databases for Tsnigriite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Tsnigriite using: Visit our Advertisers for Tsnigriite : Translate Tsnigriite Mineral Data : Ask about Tsnigriite here : Print or Cut-and-Paste your Tsnigriite Specimen Label here :
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