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Brezinaite Mineral Data
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General Brezinaite Information
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 Chemical Formula: |
Cr3S4 |
| Composition: |
Molecular Weight = 284.25 gm |
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Chromium 54.88 % Cr |
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Sulfur 45.12 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Cr3S4 |
| Environment: |
In the metal matrix and contiguous to silicate inclusions (Tucson iron meteorite). |
| IMA Status: |
Approved IMA 1969 |
| Locality: |
In the Tucson and New Baltimore iron meteorites. Link to MinDat.org Location Data. |
| Name Origin: |
For Aristides Brezina (1848-1909), past Director of the Mineralogy-Petrology Section of the Natural History Museum, Vienna, Austria. |
| Name Pronunciation: |
Brezinaite + Pronunciation  |
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Brezinaite Crystallography
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| Axial Ratios: |
a:b:c =1.7401:1:3.2905 |
| Cell Dimensions: |
a = 5.96, b = 3.425, c = 11.27, Z = 2; beta = 91.533° V = 229.97 Den(Calc)= 4.10 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: I2/m |
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Physical Properties of Brezinaite
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| Color: |
Brownish gray, Gray. |
| Density: |
4.12 |
| Diaphaneity: |
Opaque |
| Hardness: |
3.5-4.5 - Between Copper Penny and Fluorite-Apatite |
| Luster: |
Metallic - Dull |
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Optical Properties of Brezinaite
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| RL Color: |
Brownish gray. |
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Calculated Properties of Brezinaite
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| Electron Density: |
Bulk Density (Electron Density)=3.92 gm/cc
note: Specific Gravity of Brezinaite =4.10 gm/cc.
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| Fermion Index: |
Fermion Index = 0.05
Boson Index = 0.95 |
| Photoelectric: |
PEBrezinaite = 14.86 barns/electron
U=PEBrezinaite x rElectron Density= 58.30 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Brezinaite is Not Radioactive |
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Brezinaite Classification
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| Dana Class: |
02.10.02.02 (02)Sulfides - Including Selenides and Tellurides |
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(02.10)where Am Bn Xp, with (m+n):p=3:4 |
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(02.10.02)Wilkmanite Group |
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02.10.02.01 Wilkmanite Ni3Se4 I2/m 2/m |
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02.10.02.02 Brezinaite Cr3S4 I2/m 2/m |
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02.10.02.03 Heideite (Fe,Cr)1x(Ti,Fe)2S4 I2/m 2/m |
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02.10.02.04 Kingstonite! (Rh,Ir,Pt)3S4 C 2/m 2/m |
| Strunz Class: |
02.DA.15 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.D - Metal Sulfides, M:S = 3:4 and 2:3 |
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02.DA -M:S = 3:4 |
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02.DA.15 Brezinaite Cr3S4 I2/m 2/m |
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02.DA.15 Heideite (Fe,Cr)1x(Ti,Fe)2S4 I2/m 2/m |
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02.DA.15 Wilkmanite Ni3Se4 I2/m 2/m |
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Other Brezinaite 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 Brezinaite :
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 Brezinaite Specimen Label here :
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Brezinaite
Cr3S4
Dana No: 02.10.02.02 Strunz No: 02.DA.15
Locality:
Notes:
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