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Tsnigriite Mineral Data
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General Tsnigriite Information
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 Chemical Formula: |
Ag9SbTe3(S,Se)3 |
| Composition: |
Molecular Weight = 1,595.01 gm |
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Silver 60.87 % Ag |
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Antimony 7.63 % Sb |
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Tellurium 24.00 % Te |
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Selenium 2.48 % Se |
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Sulfur 5.03 % S |
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______ |
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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. |
| Name Pronunciation: |
Tsnigriite + Pronunciation  |
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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: |
Monoclinic Space Group: P 2/m,Pm |
| X Ray Diffraction: |
By Intensity(I/Io): 2.2(1), 3.78(0.7), 4.26(0.5), |
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Physical Properties of Tsnigriite
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| Color: |
Dark gray. |
| Density: |
7.38 |
| Diaphaneity: |
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 |
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Calculated Properties of Tsnigriite
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| Electron Density: |
Bulk Density (Electron Density)=6.40 gm/cc
note: Specific Gravity of Tsnigriite =7.43 gm/cc.
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| Fermion Index: |
Fermion Index = 0.02
Boson Index = 0.98 |
| Photoelectric: |
PETsnigriite = 274.85 barns/electron
U=PETsnigriite x rElectron Density=1,759.18 barns/cc.
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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: |
03.01.12.01 (03)Sulfides - Sulfosalts |
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(03.01)where z/y > 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.01.12)Dana Group |
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03.01.12.01 Tsnigriite Ag9SbTe3(S,Se)3 P 2/m,Pm Mono |
| Strunz Class: |
02.LA.55 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.55 Tsnigriite Ag9SbTe3(S,Se)3 P 2/m,Pm Mono |
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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 - 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 Tsnigriite Specimen Label here :
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Tsnigriite
Ag9SbTe3(S,Se)3
Dana No: 03.01.12.01 Strunz No: 02.LA.55
Locality:
Notes:
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