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Bismutohauchecornite Mineral Data
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General Bismutohauchecornite Information
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 Chemical Formula: |
Ni9Bi2S8 |
| Composition: |
Molecular Weight = 1,202.70 gm |
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Nickel 43.92 % Ni |
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Bismuth 34.75 % Bi |
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Sulfur 21.33 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Ni9Bi2S8 |
| Environment: |
Hydrothermal origin, as secondary pore-fillings and replacements of sandstone and conglomerate. |
| IMA Status: |
Approved IMA 1980 |
| Locality: |
Oktyabr mine, Norilsk, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Bi analog of hauchecornite. |
| Name Pronunciation: |
Bismutohauchecornite + Pronunciation  |
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Bismutohauchecornite Crystallography
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| Axial Ratios: |
a:c = 1:0.79782 |
| Cell Dimensions: |
a = 7.37, c = 5.88, Z = 1; V = 319.38 Den(Calc)= 6.25 |
| Crystal System: |
Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mmm |
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Physical Properties of Bismutohauchecornite
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| Cleavage: |
None |
| Color: |
Bronze. |
| Diaphaneity: |
Opaque |
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
| Habit: |
Tabular - Form dimensions are thin in one direction. |
| Hardness: |
5.5 - Knife Blade |
| Luster: |
Metallic |
| Streak: |
grayish black |
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Optical Properties of Bismutohauchecornite
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| RL Anisotrophism: |
Weak. |
| RL Pleochroism: |
Moderate. |
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Calculated Properties of Bismutohauchecornite
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| Electron Density: |
Bulk Density (Electron Density)=5.67 gm/cc
note: Specific Gravity of Bismutohauchecornite =6.25 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0065628659
Boson Index = 0.9934371341 |
| Photoelectric: |
PEBismutohauchecornite = 635.91 barns/electron
U=PEBismutohauchecornite x rElectron Density=3,608.61 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bismutohauchecornite is Not Radioactive |
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Bismutohauchecornite Classification
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| Dana Class: |
03.02.05.02 (03)Sulfides - Sulfosalts |
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(03.02)where z/y = 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.02.05)Hauchecornite Group, Complex Ni sulfides (Tetragonal: P4/nnn or I4/mmm) |
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03.02.05.01 Hauchecornite Ni9Bi(Sb,Bi)S8 P 4/mmm 4/m 2/m 2/m |
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03.02.05.02 Bismutohauchecornite Ni9Bi2S8 P 4/mmm 4/m 2/m 2/m |
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03.02.05.03 Tellurohauchecornite Ni9BiTeS8 P 4/mmm 4/m 2/m 2/m |
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03.02.05.04 Arsenohauchecornite Ni18Bi3AsS16 I 4/mmm 4/m 2/m 2/m |
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03.02.05.05 Tucekite Ni9Sb2S8 P 4/mmm 4/m 2/m 2/m |
| Strunz Class: |
02.BB.10 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1) |
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02.BB -With Ni, Fe |
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02.BB.10 Arsenohauchecornite Ni18Bi3AsS16 I 4/mmm 4/m 2/m 2/m |
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02.BB.10 Bismutohauchecornite Ni9Bi2S8 P 4/mmm 4/m 2/m 2/m |
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02.BB.10 Hauchecornite Ni9Bi(Sb,Bi)S8 P 4/mmm 4/m 2/m 2/m |
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02.BB.10 Tellurohauchecornite Ni9BiTeS8 P 4/mmm 4/m 2/m 2/m |
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02.BB.10 Tucekite Ni9Sb2S8 P 4/mmm 4/m 2/m 2/m |
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Other Bismutohauchecornite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Bismutohauchecornite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Ecole des Mines de Paris
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
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Print or Cut-and-Paste your Bismutohauchecornite Specimen Label here :
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Bismutohauchecornite
Ni9Bi2S8
Dana No: 03.02.05.02 Strunz No: 02.BB.10
Locality:
Notes:
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