Cupropolybasite Mineral Data

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
 

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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 ScalenohedralH-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),
Click Here for Large Cupropolybasite Structure Window Crystal Structure:

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Bindi L , Evain M , Spry P G , Tait K T , Menchetti S , Mineralogical Magazine , 71 (2007) p.641-650, Structural role of copper in the minerals of the pearceite-polybasite group:, the case of the new minerals cupropearceite and cupropolybasite, Locality: Premier mine, Stewart, British Columbia, Canada

 

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: 03.01.07.04 (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
 
03.01.07.01 Arsenpolybasite [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] C 2/m 2/m
 
03.01.07.02 Polybasite [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] C 2/m 2/m
 
03.01.07.03 Selenopolybasite! [(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2] P 3m1 3m
 
03.01.07.04 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 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Cupropolybasite Specimen Label here :

Cupropolybasite

[Cu6Sb2S7][Ag9CuS4]
Dana No: 03.01.07.04 Strunz No: 02.GB.15
Locality:

 

Notes: