Mineralogy Database

Antimonpearceite Mineral Data

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General Antimonpearceite Information

Help on Chemical  Formula: Chemical Formula: [Ag9CuS4] [(Ag,Cu)6(Sb,As)2S7]
Help on Composition: Composition: Molecular Weight = 2,121.41 gm
   Copper    11.98 %  Cu
   Silver    61.02 %  Ag
   Antimony   8.61 %  Sb
   Arsenic    1.77 %  As
   Sulfur    16.63 %  S
            100.00 % 
Help on Empirical Formula: Empirical Formula: Ag12Cu4Sb1.5As0.5S11
Help on Environment: Environment: In epithermal precious metal veins.
Help on IMA Status: IMA Status: Approved IMA 1963
Help on Locality: Locality: In Mexico, from an unspecified locality in Sonora, and from Guanajuato. At Taltal, Chile. From the Clara mine, near Wolfrath, Black Forest, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For its compositional relationship to pearceite.
Help on Name Pronunciation: Name Pronunciation: Antimonpearceite + Pronunciation Say ANTIMONPEARCEITE
Help on Synonym: Synonym: Polybasite-Tac - Suggested nomenclature from AmMin v92:918

Antimonpearceite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.7297:1:1.6081
Help on Cell Dimensions: Cell Dimensions: a = 12.8, b = 7.4, c = 11.9, Z = 2; beta = 90° V = 1,127.17 Den(Calc)= 6.25
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3(1), 2.84(0.9), 3.11(0.5),

Physical Properties of Antimonpearceite

Help on Cleavage: Cleavage: None
Help on Color: Color: Black.
Help on Density: Density: 6.33 - 6.35, Average = 6.34
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Sub Metallic
Help on Streak: Streak: black

Calculated Properties of Antimonpearceite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.59 gm/cc
note: Specific Gravity of Antimonpearceite =6.25 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0012470196
Boson Index = 0.9987529804
Help on Photoelectric: Photoelectric: PEAntimonpearceite = 191.60 barns/electron
U=PEAntimonpearceite x rElectron Density=1,071.40 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Antimonpearceite is Not Radioactive

Antimonpearceite 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
  (03.01.08)Pearceite group Pearceite [Ag9CuS4][(Ag,Cu)6(As,Sb)2S7] P 3m1 3 2/m Antimonpearceite [Ag9CuS4][(Ag,Cu)6(Sb,As)2S7] C 2/m 2/m Cupropearceite [Cu6As2S7][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 Antimonpearceite Information

Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Antimonpearceite :
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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Print or Cut-and-Paste your Antimonpearceite Specimen Label here :


[Ag9CuS4] [(Ag,Cu)6(Sb,As)2S7]
Dana No: Strunz No: 02.GB.15





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