Chalcosiderite Mineral Data

Chalcosiderite Mineral Data
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General Chalcosiderite Information

Help on Chemical Formula: Chemical Formula: CuFe+++6(PO4)4(OH)8•4(H2O)
Help on Composition: Composition: Molecular Weight = 986.63 gm
   Iron        33.96 %  Fe   43.69 % FeO
   Copper       6.44 %  Cu    8.06 % CuO
   Phosphorus  12.56 %  P    28.77 % P2O5
   Hydrogen     1.63 %  H    14.61 % H2O
   Oxygen      45.41 %  O
              ______        ______ 
              100.00 %       95.14 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CuFe2+6(PO4)4(OH)8•4(H2O)
Help on Environment: Environment: A rare mineral in the oxidized zone of some hydrothermal mineral deposits. Forms a series with turquoise.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1814
Help on Locality: Locality: West Phoenix mine, Cornwall, England. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for copper and iron, for those elements in the mineral’s composition.
Help on Name Pronunciation: Name Pronunciation: Chalcosiderite + Pronunciation Say CHALCOSIDERITE
Help on Synonym: Synonym: Andrewsite
  ICSD 67037
  PDF 37-446
 

Chalcosiderite Image

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Chalcosiderite

Comments: Pale bluish transparent crystal of chalcosiderite on matrix.
Location: Cornwall, England. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Chalcosiderite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.7524:1:0.774
Help on Cell Dimensions: Cell Dimensions: a = 7.66, b = 10.18, c = 7.88, Z = 1; alpha = 112.483°, beta = 115.3°, gamma = 69° V = 479.22 Den(Calc)= 3.42
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.77(1), 3.39(0.7), 3.02(0.6),
Help on Forms: Forms:

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Forms: ( 1 3 0) ( 1 1 0) ( 0 1 0) ( 1 1 1) ( 1 0 0) ( 0 0 1)

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Giuseppetti G , Mazzi F , Tadini C , Neues Jahrbuch fur Mineralogie, Monatshefte , 1989 (1989) p.227-239, The crystal structure of chalcosiderite, CuFe3+6(PO4)4(OH)8*4H2O, Locality: Wheal Phoenix Mine, Cornwall, England

 

Physical Properties of Chalcosiderite

Help on Cleavage: Cleavage: {001} Perfect, {0101} Good
Help on Color: Color: Apple green, Dark green.
Help on Density: Density: 3.1
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Chalcosiderite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.34 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.267 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.251,KPDmeas= 0.2656,KC= 0.1982
Ncalc = 1.61 - 1.65
Help on Optical Data: Optical Data: Biaxial (-), a=1.775, b=1.84, g=1.855, bire=0.0800, 2V(Calc)=48, 2V(Meas)=22. Dispersion relatively strong.
 

Calculated Properties of Chalcosiderite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.22 gm/cc
note: Specific Gravity of Chalcosiderite =3.28 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0074203754
Boson Index = 0.9925796246
Help on Photoelectric: Photoelectric: PEChalcosiderite = 13.47 barns/electron
U=PEChalcosiderite x rElectron Density= 43.43 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chalcosiderite is Not Radioactive
 

Chalcosiderite Classification
Help on Dana Class: Dana Class: 42.09.03.04 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.09)where (A)3 (XO4)2 Zq · x(H2O)
  (42.09.03)Turquoise Group
 
42.09.03.01 Turquoise CuAl6(PO4)4(OH)8•4(H2O) P1 1
 
42.09.03.02 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O) P1 1
 
42.09.03.03 Faustite (Zn,Cu)Al6(PO4)4(OH)8•4(H2O) P1 1
 
42.09.03.04 Chalcosiderite CuFe6(PO4)4(OH)8•4(H2O) P1 1
 
42.09.03.05 Aheylite (Fe,Zn)Al6(PO4)4(OH)8•4(H2O) P1 1
 
42.09.03.06 Planerite Al6(PO4)2(PO3OH)2(OH)8•4(H2O) P1 1
Help on Strunz Class: Strunz Class: 08.DD.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DD -With only medium-sized cations, (OH, etc.):RO4 = 2:1
 
08.DD.15 Aheylite (Fe,Zn)Al6(PO4)4(OH)8•4(H2O) P1 1
 
08.DD.15 Chalcosiderite CuFe6(PO4)4(OH)8•4(H2O) P1 1
 
08.DD.15 Faustite (Zn,Cu)Al6(PO4)4(OH)8•4(H2O) P1 1
 
08.DD.15 Planerite Al6(PO4)2(PO3OH)2(OH)8•4(H2O) P1 1
 
08.DD.15 Turquoise CuAl6(PO4)4(OH)8•4(H2O) P1 1
 

Other Chalcosiderite Information
Help on References: References: NAME( AntBidBlaNic4) 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 Chalcosiderite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - MinMax(Deutsch)
12 - MinMax(English)
13 - Mineralienatlas (Deutsch)
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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Chalcosiderite

CuFe+++6(PO4)4(OH)8•4(H2O)
Dana No: 42.09.03.04 Strunz No: 08.DD.15
Locality:

 

Notes: