Xanthoxenite Mineral Data (original) (raw)

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

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

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 - PinacoidalH-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:

42.11.15.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.11)where (AB)4 (XO4)3 Zq � x(H2O)

(42.11.15)Dana Group

42.11.15.01 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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Ask about Xanthoxenite here :
Ask-A-Mineralogist from the Mineralogical Society of America
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Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol

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

Xanthoxenite

Ca4Fe+++2(PO4)4(OH)2•3(H2O)
Dana No: 42.11.15.01 Strunz No: 08.DH.40
Locality:

Notes: