Mineralogy Database

Gruzdevite Mineral Data

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General Gruzdevite Information

Help on Chemical  Formula: Chemical Formula: Cu6Hg3Sb4S12
Help on Composition: Composition: Molecular Weight = 1,854.84 gm
   Copper    20.56 %  Cu
   Mercury   32.44 %  Hg
   Antimony  26.26 %  Sb
   Sulfur    20.75 %  S
            100.00 % 
Help on Empirical Formula: Empirical Formula: Cu6Hg3Sb4S12
Help on Environment: Environment: In veinlets of probable low-temperature hydrothermal origin.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: At the Chauvai Sb-Hg deposit, southern Kirgizia, USSR. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: To honor the Russian mineralogist, V.S. Gruzdev (1938-1977).
Help on Name Pronunciation: Name Pronunciation: Gruzdevite + Pronunciation Say GRUZDEVITE

Gruzdevite Image

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Comments: Black aggregates of gruzdevite in matrix.
Location: Moctezuma mine, Sonora, Mexico. Scale: Picture Size 1 cm.
© Rhonda Spencer / ASDM Sonoran Desert Digital Library

Gruzdevite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.67856
Help on Cell Dimensions: Cell Dimensions: a = 13.9, c = 9.432, Z = 3; V = 1,578.21 Den(Calc)= 5.85
Help on Crystal System: Crystal System: Trigonal - Pyramidal H-M Symbol (3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.16(1), 1.929(0.9), 1.645(0.8),

Physical Properties of Gruzdevite

Help on Cleavage: Cleavage: None
Help on Color: Color: Grayish black.
Help on Density: Density: 5.88
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Metallic

Optical Properties of Gruzdevite

Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on RL Color: RL Color: White.

Calculated Properties of Gruzdevite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.11 gm/cc
note: Specific Gravity of Gruzdevite =5.85 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.09
Boson Index = 0.91
Help on Photoelectric: Photoelectric: PEGruzdevite = 625.30 barns/electron
U=PEGruzdevite x rElectron Density=3,194.86 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Gruzdevite is Not Radioactive

Gruzdevite Classification

Help on  Dana Class: Dana Class: (03)Sulfides - Sulfosalts
  (03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.04.13)Dana Group Nowackiite Cu6Zn3As4S12 R 3 3 Aktashite Cu6Hg3As4S12 R 3 3 Gruzdevite Cu6Hg3Sb4S12 R 3 3
Help on  Strunz Class: Strunz Class: 02.GA.30 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.G - Sulfarsenites, sulfantimonites, sulfbismuthites
  02.GA -Neso-sulfarsenites, etc., without additional S
02.GA.30 Aktashite Cu6Hg3As4S12 R 3 3
02.GA.30 Gruzdevite Cu6Hg3Sb4S12 R 3 3
02.GA.30 Nowackiite Cu6Zn3As4S12 R 3 3

Other Gruzdevite Information

Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: 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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Dana No: Strunz No: 02.GA.30





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