General Faustite Information![]() (Zn,Cu)Al6(PO4)4(OH)8•4(H2O) |
![]() Molecular Weight = 823.92 gm |
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Aluminum 19.65 % Al 37.13 % Al2O3 |
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Zinc 6.35 % Zn 7.90 % ZnO |
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Copper 1.54 % Cu 1.74 % Cu2O |
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Phosphorus 15.04 % P 34.46 % P2O5 |
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Hydrogen 2.08 % H 18.59 % H2O |
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Oxygen 55.34 % O |
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100.00 % 99.81 % = TOTAL OXIDE |
![]() Zn0.8Cu0.2Al6(PO4)4(OH)8•4.5(H2O) |
![]() In argillized shales associated with copper mineralization. |
![]() Valid Species (Pre-IMA) 1953 |
![]() Copper King mine, about 16 km northwest of Carlin, Maggie Creek district, Eureka County, Nevada, USA. Link to MinDat.org Location Data. |
![]() Named for George Tobias Faust (1908-1985), mineralogist and geologist, U. S. Geological Survey. |
![]() Faustite |
![]() ![]() Cuprofaustite - Cu-bearing faustite |
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Faustite Crystallography![]() a:b:c =0.7522:1:0.7755 |
![]() 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 |
![]() Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 |
![]() By Intensity(I/Io): 3.68(1), 2.89(0.8), 6.7(0.7), |
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| Physical Properties of Faustite![]() {???} Indistinct |
![]() Apple green. |
![]() 2.92 |
![]() Opaque |
![]() Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
![]() Massive - Uniformly indistinguishable crystals forming large masses. |
![]() Nodular - Tuberose forms having irregular protuberances over the surface. |
![]() Nuggets - Irregular lumps produced by stream transport of malleable metals. |
![]() 5.5 - Knife Blade |
![]() Earthy (Dull) |
![]() greenish white |
| Optical Properties of Faustite![]() 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 ![]() Biaxial (+), b=1.613 |
| Calculated Properties of Faustite![]() Bulk Density (Electron Density)=2.92 gm/cc |
note: Specific Gravity of Faustite =2.91 gm/cc. ![]() Fermion Index = 0.0028719103 |
Boson Index = 0.9971280897 ![]() PEFaustite = 5.02 barns/electron |
U=PEFaustite x rElectron Density= 14.63 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Faustite is Not Radioactive | Faustite Classification![]() 42.09.03.03 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.09)where (A)3 (XO4)2 Zq · x(H2O) |
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(42.09.03)Turquoise Group |
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![]() 08.DD.15 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DD -With only medium-sized cations, (OH, etc.):RO4 = 2:1 |
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| Other Faustite Information![]() NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic4) |
![]() Links to other databases for Faustite : |
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 Search for Faustite using: Visit our Advertisers for Faustite : A Bijoux Google Search for FaustiteAdam's Minerals Google Search for Faustite Cape Minerals Google Search for Faustite Dakota Matrix Minerals Google Search for Faustite Excalibur Mineral Corp. Google Search for Faustite Exceptional Minerals Google Search for Faustite John Betts Fine Minerals Search for Faustite McDougall Minerals Google Search for Faustite Mineral News Website Link Rock and Mineral Shows Google Search for Faustite Weinrich Minerals, Inc. Google Search for Faustite Ask about Faustite here : Print or Cut-and-Paste your Faustite Specimen Label here :
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