Gruzdevite Mineral Data + Say GRUZDEVITE

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).
 

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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 - PyramidalH-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 Diaphaniety: Diaphaniety: 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:

relectron=5.11 gm/cc
note: rGruzdevite =5.85 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.09953
Boson Index = 0.90047
Help on Photoelectric: Photoelectric:

PEGruzdevite = 625.30 barns/electron
U=PEGruzdevite x relectron=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: 3.4.13.3 (3)Sulfides - Sulfosalts
  (3.4)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (3.4.13)Dana Group
 
3.4.13.1 Nowackiite Cu6Zn3As4S12 R 3 3
 
3.4.13.2 Aktashite Cu6Hg3As4S12 R 3 3
 
3.4.13.3 Gruzdevite Cu6Hg3Sb4S12 R 3 3
Help on  Strunz Class: Strunz Class: II/C.12-40 II - Sulfides and sulphosalts
  II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1
  II/C.12 - Tetrahedrite group, Watanabeite - Gruzdevite series
 
II/C.12-05 Watanabeite Cu4(As,Sb)2S5 Unk Ortho
 
II/C.12-10 Sinnerite Cu6As4S9 P1 1
 
II/C.12-20 Nowackiite Cu6Zn3As4S12 R 3 3
 
II/C.12-30 Aktashite Cu6Hg3As4S12 R 3 3
 
II/C.12-40 Gruzdevite Cu6Hg3Sb4S12 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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Gruzdevite

Cu6Hg3Sb4S12
Dana No: 3.4.13.3 Strunz No: II/C.12-40
Locality:

 

Notes:

 

 
   
 
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