Tsumoite Mineral Data + 
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- 2.8.20.1 Tsumoite BiTe P 3m1 3 2/m
- 2.8.20.2 Sulphotsumoite Bi3Te2S P 3m1 3 2/m
- 2.8.20.3 Nevskite Bi(Se,S) P 3m1 3 2/m
- 2.8.20.4 Ingodite Bi(S,Te) P 3m1 3 2/m
- 2.8.20.5 Telluronevskite Bi3TeSe2 P 3m1 3 2/m
- II/D.10-10 Nevskite Bi(Se,S) P 3m1 3 2/m
- II/D.10-30 Ingodite Bi(S,Te) P 3m1 3 2/m
- II/D.10-35 Sztrokayite* Bi3TeS2 Trig ? Trig
- II/D.10-40 Sulphotsumoite Bi3Te2S P 3m1 3 2/m
- II/D.10-50 Tsumoite BiTe P 3m1 3 2/m
- II/D.10-55 Telluronevskite Bi3TeSe2 P 3m1 3 2/m
- II/D.10-60 Protojoseite* Bi4TeS2(?) R 3m 3 2/m
- II/D.10-70 Baksanite! Bi6Te2S3 P 3m1 3 2/m
General Tsumoite Information |
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 Chemical Formula: |
BiTe | ||
| Composition: |
Molecular Weight = 336.58 gm | ||
| Bismuth 62.09 % Bi | |||
| Tellurium 37.91 % Te | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
BiTe | ||
| Environment: |
As small irregular aggregates in skarns associated with pyrometasomatic Cu-Zn-Pb deposits. | ||
| IMA Status: |
Approved IMA 1978 | ||
| Locality: |
Tsumo mine, Hiroshima, Shimane prefecture, Honshu, Japan. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for the locality. | ||
| Synonym: |
ICSD 30525 | ||
| PDF 44-667 | |||
Tsumoite Image | |||
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Images:
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Tsumoite Crystallography |
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| Axial Ratios: |
a:c = 1:5.43871 | ||
| Cell Dimensions: |
a = 4.422, c = 24.05, Z = 6; V = 407.27 Den(Calc)= 8.23 | ||
| Crystal System: |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.23(1), 2.36(0.6), 2.21(0.5), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Tsumoite |
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| Cleavage: |
[0001] Perfect | ||
| Color: |
Silver white. | ||
| Density: |
8.16 | ||
| Diaphaniety: |
Opaque | ||
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. | ||
| Habit: |
Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks. | ||
| Hardness: |
2.5-3 - Finger Nail-Calcite | ||
| Luster: |
Metallic | ||
| Streak: |
steel gray | ||
Optical Properties of Tsumoite |
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| RL Anisotrophism: |
Moderate. | ||
| RL Color: |
White with a creamy tint. | ||
| RL Pleochroism: |
Very weak. | ||
Calculated Properties of Tsumoite |
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| Electron Density: |
relectron=6.60 gm/cc |
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| Fermion Index |
Fermion Index = 0.03029 Boson Index = 0.96971 |
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| Photoelectric: |
PETsumoite =1,390.51 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tsumoite is Not Radioactive |
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Tsumoite Classification |
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| Dana Class: |
2.8.20.1 (2)Sulfides - Including Selenides and Tellurides | ||
| (2.8)where Am Bn Xp, with (m+n):p=1:1 | |||
| (2.8.20)Tsumoite Group (Trigonal: P3¯m1) | |||
| Strunz Class: |
II/D.10-50 II - Sulfides and sulphosalts | ||
| II/D - Sulfides with metal: sulfur, selenium and tellurium < 1:1, Tellurides with Copper, Silver, Gold | |||
| II/D.10 - Tetradymite group, Nevskite - Tsumoite series | |||
Other Tsumoite Information |
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) | ||
| See Also: |
Links to other databases for Tsumoite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - Scandinavian mineral gallery 14 - WWW-MINCRYST 15 -École des Mines de Paris Search for Tsumoite using: Visit our Advertisers for Tsumoite : Translate Tsumoite Mineral Data : Ask about Tsumoite here : Print or Cut-and-Paste your Tsumoite Specimen Label here :
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