Xenophyllite Mineral Data

Xenophyllite Mineral Data
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General Xenophyllite Information

Help on Chemical Formula: Chemical Formula: Na4Fe7(PO4)6
Help on Composition: Composition: Molecular Weight = 1,052.72 gm
   Sodium       8.74 %  Na   11.78 % Na2O
   Iron        37.14 %  Fe   47.77 % FeO
   Phosphorus  17.65 %  P    40.45 % P2O5
   Oxygen      36.48 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4Fe2+7(PO4)6
Help on Environment: Environment: Fillowite group
Help on IMA Status: IMA Status: Proposed IMA 2006 (Dana # Added)
Help on Locality: Locality: Augustinovka iron meteorite, Ekaterinoslav (now Dnepropetrovsk), Ukraine Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals, Nomenclature and Classification (CNMNC)
Help on Synonym: Synonym: IMA2006-006
 

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Xenophyllite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.001:1:1.8317
Help on Cell Dimensions: Cell Dimensions: a = 9.643, b = 9.633, c = 17.645, Z = 4; alpha = 88.26°, beta = 88.16°, gamma = 64.83° V = 1,481.98 Den(Calc)= 4.72
Help on Crystal System: Crystal System: TriclinicSpace Group: P1 or P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.034(1), 2.715(0.8), 2.585(0.3),1.769(0.2), 1.87(0.2), 2.405(0.2), 2.888(0.2), 5.12(0.2),
 

Optical Properties of Xenophyllite

Help on Optical Data: Optical Data: NCalc= 1.88 - from Gladstone-Dale relationship (KC = 0.1862) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Xenophyllite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.56 gm/cc
note: Specific Gravity of Xenophyllite =4.72 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0080477602
Boson Index = 0.9919522398
Help on Photoelectric: Photoelectric: PEXenophyllite = 12.17 barns/electron
U=PEXenophyllite x rElectron Density= 55.43 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Xenophyllite is Not Radioactive
 

Xenophyllite Classification
Help on Dana Class: Dana Class: 38.02.05.05 (38)Anhydrous Phosphates, etc
  (38.02)(A+ B++)5 (XO4)3
  (38.02.05)Fillowite Group
 
38.02.05.01 Fillowite Na2Ca(Mn,Fe)7(PO4)6 R 3 3
 
38.02.05.02 Johnsomervilleite Na2Ca(Mg,Fe,Mn)7(PO4)6 R 3 3
 
38.02.05.03 Chladniite Na2Ca(Mg,Fe)7(PO4)6 R 3 3
 
38.02.05.04 Galileiite! NaFe4(PO4)3 R 3 3
 
38.02.05.05 Xenophyllite! Na4Fe7(PO4)6 P1 or P1 Tri
 
38.02.05.06 Stornesite-(Y)! (Y,Ca)[]2Na6(Ca,Na)8(Mg,Fe)43(PO4)36 R 3 3
Help on Strunz Class: Strunz Class: 08.AC.50 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AC -With medium-sized and large cations
 
08.AC.50 Fillowite Na2Ca(Mn,Fe)7(PO4)6 R 3 3
 
08.AC.50 Chladniite Na2Ca(Mg,Fe)7(PO4)6 R 3 3
 
08.AC.50 Johnsomervilleite Na2Ca(Mg,Fe,Mn)7(PO4)6 R 3 3
 
08.AC.50 Galileiite! NaFe4(PO4)3 R 3 3
 
08.AC.50 Stornesite-(Y)! (Y,Ca)[]2Na6(Ca,Na)8(Mg,Fe)43(PO4)36 R 3 3
 
08.AC.50 Xenophyllite! Na4Fe7(PO4)6 P1 or P1 Tri
 

Other Xenophyllite Information
Help on See Also: See Also: Links to other databases for Xenophyllite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Xenophyllite

Na4Fe7(PO4)6
Dana No: 38.02.05.05 Strunz No: 08.AC.50
Locality:

 

Notes: