Mineralogy Database

Catamarcaite Mineral Data

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General Catamarcaite Information

Help on Chemical  Formula: Chemical Formula: Cu6GeWS8
Help on Composition: Composition: Molecular Weight = 902.31 gm
   Iron        0.19 %  Fe
   Copper     42.89 %  Cu
   Silver      0.12 %  Ag
   Germanium   7.89 %  Ge
   Tungsten   20.99 %  W
   Sulfur     27.93 %  S
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: Cu6.09Ag0.01Fe3+0.03Ge0.98W1.03S7.86
Help on Environment: Environment: Occurs as a thin rim lining cavities and fractures in chalcocite-bornite ore.
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: IMA2003-020
 

Catamarcaite Image

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  Putzite   Catamarcaite

Comments: Polished section of putzite (pu) grain in close association with unnamed Cu8Fe2ZnGe2S12 (un1) and catamarcaite (ca), as inclusions in chalcocite-sphalerite (cc/sp) (CanMin 42:1761).
Location: Old dumps near the Rosario vein, Capillitas mining district, Department of Andalgalá, Catamarca Province, Argentina.. Scale: See Image.
© Canadian Mineralogist

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  Catamarcaite

Comments: Fractured aggregate of catamarcaite (Ct) composed of twinned grains with red internal reflections; Dg is digenite, Sp sphalerite. Oil immersion, crossed polars. (CanMin, v44:1481).
Location: Bornite-rich ore from old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina. Scale: See Image.
© Canadian Mineralogist

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  Briartite   Catamarcaite   Bornite

Comments: Briartite-type phase (Bri) in close association with catamarcaite (Ct) lining a cavity in massive bornite (Bn) - chalcocite (Cc) ore; Sp is sphalerite (CanMin v44:1481).
Location: Bornite-rich ore from old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina.. Scale: See Image.
© Canadian Mineralogist

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  Luzonite   Catamarcaite

Comments: Catamarcaite (Ct) in contact with luzonite (Luz), unnamed Cu8Fe2ZnGe2S12 (un), sphalerite (Sp) and fine-grained chalcocite - covellite (Cc/Cv). (CanMin v44:1481).
Location: Bornite-rich ore from old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina. Scale: See Image.
© Canadian Mineralogist

Catamarcaite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.64677
Help on Cell Dimensions: Cell Dimensions: a = 7.5238, c = 12.39, Z = 2; V = 607.40 Den(Calc)= 4.93
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 63mc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.767(1)(011), 1.881(0.48)(220), 3.151(0.35)(021),2.884(0.28)(022), 1.744(0.26)(026), 2.416(0.26)(121), 3.215(0.25)(112), 1.972(0.24)(025),
 

Physical Properties of Catamarcaite

Help on Cleavage: Cleavage: None
Help on Color: Color: Gray.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Irregular - Very brittle fracture producing irregular fragments
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Catamarcaite

Help on RL Anisotrophism: RL Anisotrophism: Weak in shades of gray.
Help on RL Bireflectance: RL Bireflectance: Very weak in oil, absent in air.
Help on RL Color: RL Color: Grayish white with a distinct brownish tine with red internal reflections.
Help on RL Pleochroism: RL Pleochroism: None.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Catamarcaite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   24.30   25.00 
   
 420 nm   24.50   25.30 
 440 nm   24.60   25.30 
 460 nm   24.50   25.20 
 470 nm   24.50   25.20 
 480 nm   24.40   25.10 
 500 nm   24.20   24.70 
 520 nm   24.10   24.50 
 540 nm   24.10   24.50 
 546 nm   24.10   24.50 
 560 nm   24.40   24.80 
 580 nm   24.50   25.10 
 589 nm   24.50   25.10 
 600 nm   24.50   25.00 
 620 nm   24.00   24.50 
 640 nm   23.60   23.90 
 650 nm   23.40   23.70 
 660 nm   23.10   23.30 
 680 nm   22.60   22.80 
 700 nm   22.20   22.40 
Standardized Intensity (100%) Reflection Spectra of Catamarcaite in Oil
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   10.40   10.90 
   
 420 nm   10.40   10.80 
 440 nm   10.60   11.10 
 460 nm   10.60   11.10 
 470 nm   10.50   11.10 
 480 nm   10.40   10.90 
 500 nm   10.20   10.50 
 520 nm   10.10   10.30 
 540 nm   10.20   10.30 
 546 nm   10.20   10.40 
 560 nm   10.30   10.60 
 580 nm   10.50   10.90 
 589 nm   10.50   10.80 
 600 nm   10.40   10.80 
 620 nm   10.30   10.50 
 640 nm    9.80   10.00 
 650 nm    9.70    9.80 
 660 nm    9.50    9.70 
 680 nm    9.10    9.20 
 700 nm    9.00    9.00 
Calculated Relative Intensity Colors of Catamarcaite in Air
Relative
Intensity
   0%   40%   80% 100% 120% 160% 200% 240% 280% 320% 360% 370%
R1                        
R2                        
Calculated Relative Intensity Colors of Catamarcaite in Oil
Relative
Intensity
   0%   90% 100% 180% 270% 360% 450% 540% 630% 720% 810% 880%
R1                        
R2                        
 

Calculated Properties of Catamarcaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.49 gm/cc
note: Specific Gravity of Catamarcaite =4.93 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PECatamarcaite = 275.18 barns/electron
U=PECatamarcaite x rElectron Density=1,236.49 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Catamarcaite is Not Radioactive
 

Catamarcaite Classification

Help on  Dana Class: Dana Class: 02.09.14.02 (02)Sulfides - Including Selenides and Tellurides
  (02.09)where Am Bn Xp, with (m+n):p=1:1
  (02.09.14)Dana Group
 
02.09.14.01 Idaite Cu5FeS6 P 63/mmc 6/m 2/m 2/m
 
02.09.14.02 Catamarcaite! Cu6GeWS8 P 63mc 6/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 02.CB.35a 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.35a Hemusite Cu6SnMoS8 Unk Cubic
 
02.CB.35a Kiddcreekite Cu6SnWS8 Unk Cubic
 
02.CB.35a Renierite (Cu,Zn)11(Ge,As)2Fe4S16 P 42c- 4 2m
 
02.CB.35a Polkovicite (Fe,Pb)3(Ge,Fe)1-xS4 F d3m 4/m 3 2/m
 
02.CB.35a Morozeviczite (Pb,Fe)3Ge1-xS4 F d3m 4/m 3 2/m
 
02.CB.35a Catamarcaite! Cu6GeWS8 P 63mc 6/m 2/m 2/m
 
02.CB.35a Vinciennite Cu10Fe4Sn(As,Sb)S16 P 4122 4 2 2
 

Other Catamarcaite Information

Help on References: References: NAME( CanMin, v44:1481) PHYS. PROP.(CanMin, v44:1481) OPTIC PROP.(CanMin, v44:1481)
Help on See Also: See Also: Links to other databases for Catamarcaite :
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 Catamarcaite Specimen Label here :

Catamarcaite

Cu6GeWS8
Dana No: 02.09.14.02 Strunz No: 02.CB.35a
Locality:

 

Notes:

 

 
   
 


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