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Cupropolybasite Mineral Data
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General Cupropolybasite Information
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 Chemical Formula: |
[Cu6Sb2S7][Ag9CuS4] |
| Composition: |
Molecular Weight = 2,011.86 gm |
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Copper 22.11 % Cu |
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Silver 48.25 % Ag |
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Antimony 12.10 % Sb |
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Sulfur 17.53 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Cu6Sb2S7Ag9CuS4 |
| Environment: |
Pearceite-polybasite group |
| IMA Status: |
Proposed IMA 2008 (Dana # Added) |
| Locality: |
Premier Mine, Stewart, British Columbia, Canada Link to MinDat.org Location Data. |
| Name Origin: |
Named as the Cu-rich analog of polybasite |
| Synonym: |
IMA2008-004 |
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Cupropolybasite Crystallography
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| Axial Ratios: |
a:c = 1:1.60809 |
| Cell Dimensions: |
a = 7.341, c = 11.805, V = 550.94 |
| Crystal System: |
Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: P 3m1 |
| 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), |
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Physical Properties of Cupropolybasite
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| Diaphaneity: |
Opaque |
| Luster: |
Metallic |
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Calculated Properties of Cupropolybasite
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| Fermion Index: |
Fermion Index = 0.0013149238
Boson Index = 0.9986850762 |
| Photoelectric: |
PECupropolybasite = 173.34 barns/electron
U=PECupropolybasite x rElectron Density= . barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cupropolybasite is Not Radioactive |
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Cupropolybasite Classification
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| Dana Class: |
03.01.07.04 (03)Sulfides - Sulfosalts |
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(03.01)where z/y > 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.01.07)Polybasite group |
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03.01.07.01 Arsenpolybasite [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] C 2/m 2/m |
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03.01.07.02 Polybasite [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] C 2/m 2/m |
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03.01.07.03 Selenopolybasite! [(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2] P 3m1 3m |
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03.01.07.04 Cupropolybasite! [Cu6Sb2S7][Ag9CuS4] P 3m1 3 2/m |
| Strunz Class: |
02.GB.15 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.GB -Neso-sulfarsenites, etc |
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02.GB.15 Antimonpearceite [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] C 2/m 2/m |
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02.GB.15 Arsenpolybasite [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] C 2/m 2/m |
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02.GB.15 Polybasite [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] C 2/m 2/m |
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02.GB.15 Pearceite [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] P 3m1 3 2/m |
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02.GB.15 Cupropearceite [Cu6As2S7][Ag9CuS4] P 3m1 3 2/m |
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02.GB.15 Selenopolybasite! [(Ag,Cu)6(Sb,As)2(S,Se)7][Ag9Cu(S,Se)2Se2] P 3m1 3m |
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02.GB.15 Cupropolybasite! [Cu6Sb2S7][Ag9CuS4] P 3m1 3 2/m |
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Other Cupropolybasite Information
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| 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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Print or Cut-and-Paste your Cupropolybasite Specimen Label here :
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Cupropolybasite
[Cu6Sb2S7][Ag9CuS4]
Dana No: 03.01.07.04 Strunz No: 02.GB.15
Locality:
Notes:
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