Faustite Mineral Data

Faustite Mineral Data
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General Faustite Information

Help on Chemical Formula: Chemical Formula: (Zn,Cu)Al6(PO4)4(OH)8•4(H2O)
Help on Composition: Composition: Molecular Weight = 823.92 gm
   Aluminum    19.65 %  Al   37.13 % Al2O3
   Zinc         6.35 %  Zn    7.90 % ZnO
   Copper       1.54 %  Cu    1.74 % Cu2O
   Phosphorus  15.04 %  P    34.46 % P2O5
   Hydrogen     2.08 %  H    18.59 % H2O
   Oxygen      55.34 %  O
              ______        ______ 
              100.00 %       99.81 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn0.8Cu0.2Al6(PO4)4(OH)8•4.5(H2O)
Help on Environment: Environment: In argillized shales associated with copper mineralization.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1953
Help on Locality: Locality: Copper King mine, about 16 km northwest of Carlin, Maggie Creek district, Eureka County, Nevada, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for George Tobias Faust (1908-1985), mineralogist and geologist, U. S. Geological Survey.
Help on Name Pronunciation: Name Pronunciation: Faustite Say FAUSTITE
Help on Synonym: Synonym: Cuprofaustite - Cu-bearing faustite
 

Faustite Image

Click Here for Larger Faustite Image in a New Browser Window Images:
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Faustite

Comments: White botryoidal faustite on matrix.
Location: Rain Mine, Eureka County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Faustite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.7522:1:0.7755
Help on Cell Dimensions: Cell Dimensions: a = 7.44, b = 9.89, c = 7.67, Z = 1; alpha = 107.2°, beta = 115.6°, gamma = 69.65° V = 455.86 Den(Calc)= 3.00
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): 3.68(1), 2.89(0.8), 6.7(0.7),
Click Here for Large Faustite Structure Window Crystal Structure:

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Kolitsch U , Giester G , Mineralogical Magazine , 64 (2000) p.905-913, The crystal structure of faustite and its copper analogue turquoise, Locality: Iron Monarch iron ore deposit, South Australia

 

Physical Properties of Faustite

Help on Cleavage: Cleavage: {???} Indistinct
Help on Color: Color: Apple green.
Help on Density: Density: 2.92
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Habit: Habit: Nuggets - Irregular lumps produced by stream transport of malleable metals.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: greenish white
 

Optical Properties of Faustite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.044 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.041 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2107,KPDmeas= 0.2099,KC= 0.2196
Ncalc = 1.64
Help on Optical Data: Optical Data: Biaxial (+), b=1.613
 

Calculated Properties of Faustite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.92 gm/cc
note: Specific Gravity of Faustite =2.91 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0028719103
Boson Index = 0.9971280897
Help on Photoelectric: Photoelectric: PEFaustite = 5.02 barns/electron
U=PEFaustite x rElectron Density= 14.63 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Faustite is Not Radioactive
 

Faustite Classification
Help on Dana Class: Dana Class: 42.09.03.03 (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 Faustite Information
Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic4)
Help on See Also: See Also: Links to other databases for Faustite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Faustite Specimen Label here :

Faustite

(Zn,Cu)Al6(PO4)4(OH)8•4(H2O)
Dana No: 42.09.03.03 Strunz No: 08.DD.15
Locality:

 

Notes: