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Gruzdevite Mineral Data
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General Gruzdevite Information
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 Chemical Formula: |
Cu6Hg3Sb4S12 |
| Composition: |
Molecular Weight = 1,854.84 gm |
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Copper 20.56 % Cu |
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Mercury 32.44 % Hg |
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Antimony 26.26 % Sb |
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Sulfur 20.75 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Cu6Hg3Sb4S12 |
| Environment: |
In veinlets of probable low-temperature hydrothermal origin. |
| IMA Status: |
Approved IMA 1981 |
| Locality: |
At the Chauvai Sb-Hg deposit, southern Kirgizia, USSR. Link to MinDat.org Location Data. |
| Name Origin: |
To honor the Russian mineralogist, V.S. Gruzdev (1938-1977). |
| Name Pronunciation: |
Gruzdevite + Pronunciation  |
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Gruzdevite Image |
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Images:
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Gruzdevite Crystallography
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| Axial Ratios: |
a:c = 1:0.67856 |
| Cell Dimensions: |
a = 13.9, c = 9.432, Z = 3; V = 1,578.21 Den(Calc)= 5.85 |
| Crystal System: |
Trigonal - Pyramidal H-M Symbol (3) Space Group: R 3 |
| X Ray Diffraction: |
By Intensity(I/Io): 3.16(1), 1.929(0.9), 1.645(0.8), |
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Physical Properties of Gruzdevite
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| Cleavage: |
None |
| Color: |
Grayish black. |
| Density: |
5.88 |
| Diaphaneity: |
Opaque |
| Hardness: |
4.5 - Between Fluorite and Apatite |
| Luster: |
Metallic |
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Optical Properties of Gruzdevite
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| RL Anisotrophism: |
Weak. |
| RL Color: |
White. |
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Calculated Properties of Gruzdevite
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| Electron Density: |
Bulk Density (Electron Density)=5.11 gm/cc
note: Specific Gravity of Gruzdevite =5.85 gm/cc.
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| Fermion Index: |
Fermion Index = 0.09
Boson Index = 0.91 |
| Photoelectric: |
PEGruzdevite = 625.30 barns/electron
U=PEGruzdevite x rElectron Density=3,194.86 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Gruzdevite is Not Radioactive |
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Gruzdevite Classification
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| Dana Class: |
03.04.13.03 (03)Sulfides - Sulfosalts |
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(03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.04.13)Dana Group |
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03.04.13.01 Nowackiite Cu6Zn3As4S12 R 3 3 |
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03.04.13.02 Aktashite Cu6Hg3As4S12 R 3 3 |
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03.04.13.03 Gruzdevite Cu6Hg3Sb4S12 R 3 3 |
| Strunz Class: |
02.GA.30 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.G - Sulfarsenites, sulfantimonites, sulfbismuthites |
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02.GA -Neso-sulfarsenites, etc., without additional S |
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02.GA.30 Aktashite Cu6Hg3As4S12 R 3 3 |
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02.GA.30 Gruzdevite Cu6Hg3Sb4S12 R 3 3 |
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02.GA.30 Nowackiite Cu6Zn3As4S12 R 3 3 |
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Other Gruzdevite 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 Gruzdevite :
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 Gruzdevite Specimen Label here :
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Gruzdevite
Cu6Hg3Sb4S12
Dana No: 03.04.13.03 Strunz No: 02.GA.30
Locality:
Notes:
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