Mineralogy Database

Chatkalite Mineral Data

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General Chatkalite Information

Help on Chemical  Formula: Chemical Formula: Cu6Fe++Sn2S8
Help on Composition: Composition: Molecular Weight = 931.07 gm
   Iron     6.00 %  Fe
   Copper  40.95 %  Cu
   Tin     25.50 %  Sn
   Sulfur  27.55 %  S
          ______ 
          100.00 % 
Help on Empirical Formula: Empirical Formula: Cu6Fe2+Sn2S8
Help on Environment: Environment: As rounded disseminations in tetrahedite, from a sulfide-bearing quartz vein.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: From an unspecified locality in the Chatkalo-Kuramin Mountains, eastern Uzbekistan, USSR. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the occurrence in the Chatkalo-Kuramin Mountains, USSR.
 

Chatkalite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.70604
Help on Cell Dimensions: Cell Dimensions: a = 7.61, c = 5.373, Z = 1; V = 311.16 Den(Calc)= 4.97
Help on Crystal System: Crystal System: Tetragonal - Scalenohedral H-M Symbol (4 2m) Space Group: P 4m2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.904(1), 3.11(0.8), 1.625(0.4),
 

Physical Properties of Chatkalite

Help on Color: Color: Rose, Brown orange.
Help on Density: Density: 5
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Metallic
 

Optical Properties of Chatkalite

Help on RL Anisotrophism: RL Anisotrophism: Weak in shades of brown.
Help on RL Color: RL Color: Pale rose.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Chatkalite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 440 nm   24.40   25.00 
   
 460 nm   25.00   25.60 
 480 nm   25.60   26.20 
 500 nm   26.20   26.70 
 520 nm   26.70   27.20 
 540 nm   27.20   27.60 
 560 nm   27.60   28.10 
 580 nm   27.90   28.60 
 600 nm   28.30   29.00 
 620 nm   28.50   29.30 
 640 nm   28.60   29.40 
 660 nm   28.60   29.50 
 680 nm   28.40   29.30 
 700 nm   27.90   28.60 
Calculated Relative Intensity Colors of Chatkalite in Air
Relative
Intensity
   0%   40%   80% 100% 120% 160% 200% 240% 280% 320% 350%
R1                      
R2                      
 

Calculated Properties of Chatkalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.57 gm/cc
note: Specific Gravity of Chatkalite =4.97 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEChatkalite = 98.54 barns/electron
U=PEChatkalite x rElectron Density= 450.26 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chatkalite is Not Radioactive
 

Chatkalite Classification

Help on  Dana Class: Dana Class: 02.09.03.02 (02)Sulfides - Including Selenides and Tellurides
  (02.09)where Am Bn Xp, with (m+n):p=1:1
  (02.09.03)Mawsonite Group
 
02.09.03.01 Mawsonite Cu6Fe2SnS8 P 4m2 4 2m
 
02.09.03.02 Chatkalite Cu6FeSn2S8 P 4m2 4 2m
 
02.09.03.03 Stannoidite Cu8Fe3Sn2S12 I 222 2 2 2
Help on  Strunz Class: Strunz Class: 02.CB.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.C - Metal Sulfides, M:S = 1:1 (and similar)
  02.CB -With Zn, Fe, Cu, Ag, Au, etc
 
02.CB.20 Chatkalite Cu6FeSn2S8 P 4m2 4 2m
 
02.CB.20 Mawsonite Cu6Fe2SnS8 P 4m2 4 2m
 

Other Chatkalite 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 Chatkalite :
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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Ask about Chatkalite here :
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Print or Cut-and-Paste your Chatkalite Specimen Label here :

Chatkalite

Cu6Fe++Sn2S8
Dana No: 02.09.03.02 Strunz No: 02.CB.20
Locality:

 

Notes: