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Cuprocopiapite Mineral Data

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General Cuprocopiapite Information

Help on Chemical  Formula: Chemical Formula: CuFe+++4(SO4)6(OH)2•20(H2O)
Help on Composition: Composition: Molecular Weight = 1,257.64 gm
   Iron      17.76 %  Fe   25.40 % Fe2O3
   Copper     5.05 %  Cu    6.32 % CuO
   Hydrogen   3.37 %  H    30.08 % H2O
   Sulfur    15.30 %  S    38.20 % SO3
   Oxygen    58.52 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CuFe3+4(SO4)6(OH)2•20(H2O)
Help on Environment: Environment: Secondary mineral probably formed by reaction between copiapite and copper sulfate-bearing solutions, preserved in arid climates.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1938
Help on Locality: Locality: Chuquicamata and at Quetena, west of Calama, Antofagasta, Chile. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the cuprian member of the copiapite group.
 

Cuprocopiapite Image

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  Cuprocopiapite

Comments: Grayish green crusts of cuprocopiapite on gypsum.
Location: Copper Queen Mine, Double Mountain Fork of Brazois River, Stonewall County, Texas, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Cuprocopiapite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4035:1:0.4002
Help on Cell Dimensions: Cell Dimensions: a = 7.34, b = 18.19, c = 7.28, Z = 1; alpha = 93.85°, beta = 101.5°, gamma = 99.33° V = 937.75 Den(Calc)= 2.23
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.56(1), 8.81(0.8), 5.82(0.5),
 

Physical Properties of Cuprocopiapite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Greenish yellow, Yellow, Orange.
Help on Density: Density: 2.08 - 2.17, Average = 2.12
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Pearly
Help on Streak: Streak: light yellow
 

Optical Properties of Cuprocopiapite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.055 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.262,KPDmeas= 0.275,KC= 0.2606
Ncalc = 1.54 - 1.58
Help on Optical Data: Optical Data: Biaxial (+), a=1.558, b=1.575, g=1.62, bire=0.0620, 2V(Calc)=66, 2V(Meas)=63.
 

Calculated Properties of Cuprocopiapite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.27 gm/cc
note: Specific Gravity of Cuprocopiapite =2.23 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0051989709
Boson Index = 0.9948010291
Help on Photoelectric: Photoelectric: PECuprocopiapite = 8.21 barns/electron
U=PECuprocopiapite x rElectron Density= 18.60 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cuprocopiapite is Not Radioactive
 

Cuprocopiapite Classification

Help on  Dana Class: Dana Class: 31.10.05.03 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.10)miscellaneous
  (31.10.05)Copiapite Group
 
31.10.05.01 Copiapite FeFe4(SO4)6(OH)2•20(H2O) P1 1
 
31.10.05.02 Magnesiocopiapite MgFe4(SO4)6(OH)2•20(H2O) P1 1
 
31.10.05.03 Cuprocopiapite CuFe4(SO4)6(OH)2•20(H2O) P1 1
 
31.10.05.04 Ferricopiapite Fe2/3Fe4(SO4)6(OH)2•20(H2O) P1 1
 
31.10.05.05 Calciocopiapite CaFe4(SO4)6(OH)2•19(H2O) P1 1
 
31.10.05.06 Zincocopiapite ZnFe4(SO4)6(OH)2•18(H2O) P1 1
 
31.10.05.07 Aluminocopiapite Al2/3Fe4(SO4)6O(OH)2•20(H2O) P1 1
Help on  Strunz Class: Strunz Class: 07.DB.35 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DB -With only medium-sized cations; insular octahedra and finite groups
 
07.DB.35 Aluminocopiapite Al2/3Fe4(SO4)6O(OH)2•20(H2O) P1 1
 
07.DB.35 Copiapite FeFe4(SO4)6(OH)2•20(H2O) P1 1
 
07.DB.35 Calciocopiapite CaFe4(SO4)6(OH)2•19(H2O) P1 1
 
07.DB.35 Cuprocopiapite CuFe4(SO4)6(OH)2•20(H2O) P1 1
 
07.DB.35 Ferricopiapite Fe2/3Fe4(SO4)6(OH)2•20(H2O) P1 1
 
07.DB.35 Magnesiocopiapite MgFe4(SO4)6(OH)2•20(H2O) P1 1
 
07.DB.35 Zincocopiapite ZnFe4(SO4)6(OH)2•18(H2O) P1 1
 

Other Cuprocopiapite Information

Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Cuprocopiapite :
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 Cuprocopiapite Specimen Label here :

Cuprocopiapite

CuFe+++4(SO4)6(OH)2•20(H2O)
Dana No: 31.10.05.03 Strunz No: 07.DB.35
Locality:

 

Notes:

 

 
   
 


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