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Ferricopiapite Mineral Data

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General Ferricopiapite Information

Help on Chemical  Formula: Chemical Formula: Fe+++2/3Fe+++4(SO4)6(OH)2•20(H2O)
Help on Composition: Composition: Molecular Weight = 1,231.32 gm
   Iron      21.17 %  Fe   30.26 % Fe2O3
   Hydrogen   3.44 %  H    30.72 % H2O
   Sulfur    15.63 %  S    39.01 % SO3
   Oxygen    59.77 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+0.66Fe3+4(SO4)6(OH)2•20(H2O)
Help on Environment: Environment: Secondary mineral formed typically by the weathering and oxidation of iron sulfide in a wide range of rock types, preserved in arid climates.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1938
Help on Locality: Locality: Challant-St. Anselme mine, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the ferric iron member of the copiapite group.
Help on Name Pronunciation: Name Pronunciation: Ferricopiapite Say FERRICOPIAPITE
 

Ferricopiapite Image

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  Ferricopiapite

Comments: Earthy, yellow ferricopiapite, variety chalcanthite.
Location: Bisbee, Cochise County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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  Goldichite   Coquimbite   Ferricopiapite

Comments: Prismatic to fibrous crystals of goldichite on white massive coquimbite with yellow ferricopiapite.
Location: Dexter No. 7 Mine, Calf Mesa, San Rafael Swell, Emery County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferricopiapite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4027:1:0.3989
Help on Cell Dimensions: Cell Dimensions: a = 7.394, b = 18.36, c = 7.324, Z = 1; alpha = 93.8°, beta = 102.2°, gamma = 98.9° V = 958.00 Den(Calc)= 2.13
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): 9.06(1), 3.58(0.8), 5.58(0.8),
 

Physical Properties of Ferricopiapite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Yellow, Orange.
Help on Density: Density: 2.1
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 Ferricopiapite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.058 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.039 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2792,KPDmeas= 0.2845,KC= 0.2688
Ncalc = 1.56 - 1.58
Help on Optical Data: Optical Data: Biaxial (+), a=1.575, g=1.62, bire=0.0450, 2V(Meas)=74.
 

Calculated Properties of Ferricopiapite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.18 gm/cc
note: Specific Gravity of Ferricopiapite =2.14 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0059510547
Boson Index = 0.9940489453
Help on Photoelectric: Photoelectric: PEFerricopiapite = 7.09 barns/electron
U=PEFerricopiapite x rElectron Density= 15.46 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferricopiapite is Not Radioactive
 

Ferricopiapite Classification

Help on  Dana Class: Dana Class: 31.10.05.04 (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 Ferricopiapite 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 Ferricopiapite :
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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Ferricopiapite

Fe+++2/3Fe+++4(SO4)6(OH)2•20(H2O)
Dana No: 31.10.05.04 Strunz No: 07.DB.35
Locality:

 

Notes:

 

 
   
 


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