Mineralogy Database

Cupropolybasite Mineral Data

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General Cupropolybasite Information

Help on Chemical  Formula: Chemical Formula: [Cu6Sb2S7][Ag9CuS4]
Help on Composition: Composition: Molecular Weight = 2,011.86 gm
   Copper    22.11 %  Cu
   Silver    48.25 %  Ag
   Antimony  12.10 %  Sb
   Sulfur    17.53 %  S
            100.00 % 
Help on Empirical Formula: Empirical Formula: Cu6Sb2S7Ag9CuS4
Help on Environment: Environment: Pearceite-polybasite group
Help on IMA Status: IMA Status: Proposed IMA 2008 (Dana # Added)
Help on Locality: Locality: Premier Mine, Stewart, British Columbia, Canada Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Cu-rich analog of polybasite
Help on Synonym: Synonym: IMA2008-004

Cupropolybasite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.60809
Help on Cell Dimensions: Cell Dimensions: a = 7.341, c = 11.805, V = 550.94
Help on Crystal System: Crystal System: Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: P 3m1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.951(1), 2.799(0.52), 1.835(0.46),3.069(0.44), 11.81(0.44), 2.163(0.43), 2.473(0.43), 2.355(0.4),

Physical Properties of Cupropolybasite

Help on Diaphaneity: Diaphaneity: Opaque
Help on Luster: Luster: Metallic

Calculated Properties of Cupropolybasite

Help on Fermion Index: Fermion Index: Fermion Index = 0.0013149238
Boson Index = 0.9986850762
Help on Photoelectric: Photoelectric: PECupropolybasite = 173.34 barns/electron
U=PECupropolybasite x rElectron Density= . barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cupropolybasite is Not Radioactive

Cupropolybasite Classification

Help on  Dana Class: Dana Class: (03)Sulfides - Sulfosalts
  (03.01)where z/y > 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.01.07)Polybasite group Arsenpolybasite [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] C 2/m 2/m Polybasite [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] C 2/m 2/m Selenopolybasite! [(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2] P 3m1 3m Cupropolybasite! [Cu6Sb2S7][Ag9CuS4] P 3m1 3 2/m
Help on  Strunz Class: Strunz Class: 02.GB.15 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.G - Sulfarsenites, sulfantimonites, sulfbismuthites
  02.GB -Neso-sulfarsenites, etc
02.GB.15 Antimonpearceite [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] C 2/m 2/m
02.GB.15 Arsenpolybasite [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] C 2/m 2/m
02.GB.15 Polybasite [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] C 2/m 2/m
02.GB.15 Pearceite [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] P 3m1 3 2/m
02.GB.15 Cupropearceite [Cu6As2S7][Ag9CuS4] P 3m1 3 2/m
02.GB.15 Selenopolybasite! [(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2] P 3m1 3m
02.GB.15 Cupropolybasite! [Cu6Sb2S7][Ag9CuS4] P 3m1 3 2/m

Other Cupropolybasite Information

Help on See Also: See Also: Links to other databases for Cupropolybasite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 02.GB.15





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