Zinclipscombite Mineral Data

Zinclipscombite Mineral Data
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General Zinclipscombite Information

Help on Chemical Formula: Chemical Formula: ZnFe+++2(PO4)2(OH)
Help on Composition: Composition: Molecular Weight = 386.04 gm
   Calcium      0.21 %  Ca    0.29 % CaO
   Aluminum     2.52 %  Al    4.75 % Al2O3
   Zinc        12.87 %  Zn   16.02 % ZnO
   Iron        24.88 %  Fe   35.58 % Fe2O3
   Arsenic      2.72 %  As    4.17 % As2O5
   Phosphorus  14.92 %  P    34.20 % P2O5
   Hydrogen     0.56 %  H     4.99 % H2O
   Oxygen      41.32 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn0.76Ca0.02Fe3+1.72Al0.36(PO4)1.86(AsO4)0.14(OH)1.8(H2O)0.17
Help on Environment: Environment: Lipscombite group
Help on IMA Status: IMA Status: Approved IMA 2006 (Dana # Added)
Help on Locality: Locality: Silver Coin mine, Valmy, Edna Mountains, Humboldt Co., Nevada, USA Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Zn analogue of lipscombite (Fe)
Help on Synonym: Synonym: iMA2006-008
 

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Zinclipscombite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.81234
Help on Cell Dimensions: Cell Dimensions: a = 7.242, c = 13.125, Z = 4; V = 688.36 Den(Calc)= 3.72
Help on Crystal System: Crystal System: Tetragonal - TrapezohedralH-M Symbol (4 2 2) Space Group: P 43212 or P 41212
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.326(1), 4.79(0.8), 3.21(0.6),1.605(0.5), 1.663(0.45), 2.602(0.45), 2.049(0.4), 2.299(0.4),
 

Physical Properties of Zinclipscombite

Help on Cleavage: Cleavage: None
Help on Color: Color: Dark green, Brown.
Help on Density: Density: 3.65
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light greenish tan
 

Optical Properties of Zinclipscombite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.093 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.11 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2083,KPDmeas= 0.2123,KC= 0.2341
Ncalc = 1.85 - 1.87
Help on Optical Data: Optical Data: Uniaxial (+), w=1.755, e=1.795, bire=0.0400.
 

Calculated Properties of Zinclipscombite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.54 gm/cc
note: Specific Gravity of Zinclipscombite =3.65 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEZinclipscombite = 16.48 barns/electron
U=PEZinclipscombite x rElectron Density= 58.29 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zinclipscombite is Not Radioactive
 

Zinclipscombite Classification
Help on Dana Class: Dana Class: 41.10.02.02 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.10)where (A++ B++)3 (XO4)2 Zq
  (41.10.02)Lipscombite Group
 
41.10.02.01 Lipscombite (Fe,Mn)Fe2(PO4)2(OH)2 P 41212 4 2 2
 
41.10.02.02 Zinclipscombite! ZnFe2(PO4)2(OH) P 43212 or P 41212 4 2 2
Help on Strunz Class: Strunz Class: 08.BB.90 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BB -With only medium-sized cations, (OH, etc.):RO4 £ 1:1
 
08.BB.90 Lipscombite (Fe,Mn)Fe2(PO4)2(OH)2 P 41212 4 2 2
 
08.BB.90 Richellite Ca3Fe10(PO4)8(OH)12•n(H2O) P 4 4
 
08.BB.90 Zinclipscombite! ZnFe2(PO4)2(OH) P 43212 or P 41212 4 2 2
 

Other Zinclipscombite Information
Help on References: References: NAME( Geology of Ore Deposits, v49:509) PHYS. PROP.(Geology of Ore Deposits, v49:509) OPTIC PROP.(Geology of Ore Deposits, v49:509)
Help on See Also: See Also: Links to other databases for Zinclipscombite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Zinclipscombite

ZnFe+++2(PO4)2(OH)
Dana No: 41.10.02.02 Strunz No: 08.BB.90
Locality:

 

Notes: