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Xanthoxenite Mineral Data

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General Xanthoxenite Information

Help on Chemical  Formula: Chemical Formula: Ca4Fe+++2(PO4)4(OH)2•3(H2O)
Help on Composition: Composition: Molecular Weight = 739.95 gm
   Calcium     21.67 %  Ca   30.31 % CaO
   Iron        15.09 %  Fe   21.58 % Fe2O3
   Phosphorus  16.74 %  P    38.37 % P2O5
   Hydrogen     1.09 %  H     9.74 % H2O
   Oxygen      45.41 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca4Fe3+2(PO4)4(OH)2•3(H2O)
Help on Environment: Environment: An uncommon alteration product of triphylite in complex zoned granite pegmatites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1920
Help on Locality: Locality: Palermo #1 mine, near North Groton, Grafton Co., New Hampshire, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for yellow and supposed chemical resemblance to cacoxenite.
Help on Name Pronunciation: Name Pronunciation: Xanthoxenite + Pronunciation Say XANTHOXENITE

Xanthoxenite Image

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Comments: Xanthoxenite crystalline coating.
Location: Palermo Mine, North Groton, Grafton County, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Xanthoxenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.757:1:0.7389
Help on Cell Dimensions: Cell Dimensions: a = 6.7, b = 8.85, c = 6.54, Z = 1; alpha = 92.1°, beta = 110.2°, gamma = 93.2° V = 363.13 Den(Calc)= 3.38
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.055(1), 3.489(0.9), 6.27(0.8),

Physical Properties of Xanthoxenite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Brownish yellow, Light yellow.
Help on Density: Density: 2.8 - 2.97, Average = 2.88
Help on Diaphaneity: Diaphaneity: Translucent
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white

Optical Properties of Xanthoxenite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.054 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.103 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2107,KPDmeas= 0.2476,KC= 0.235
Ncalc = 1.66 - 1.8
Help on Optical Data: Optical Data: Biaxial (-), a=1.704, b=1.715, g=1.724, bire=0.0200, 2V(Calc)=82, 2V(Meas)=80-90.

Calculated Properties of Xanthoxenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.87 gm/cc
note: Specific Gravity of Xanthoxenite =2.89 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0037121565
Boson Index = 0.9962878435
Help on Photoelectric: Photoelectric: PEXanthoxenite = 7.91 barns/electron
U=PEXanthoxenite x rElectron Density= 22.70 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Xanthoxenite is Not Radioactive

Xanthoxenite Classification

Help on  Dana Class: Dana Class: (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.11)where (AB)4 (XO4)3 Zq � x(H2O)
  (42.11.15)Dana Group Xanthoxenite Ca4Fe2(PO4)4(OH)2•3(H2O) P1 1
Help on  Strunz Class: Strunz Class: 08.DH.40 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DH -With large and medium-sized cations, (OH, etc.):RO4 < 1:1
08.DH.40 Xanthoxenite Ca4Fe2(PO4)4(OH)2•3(H2O) P1 1

Other Xanthoxenite 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 Xanthoxenite :
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

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Dana No: Strunz No: 08.DH.40





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