Mineralogy Database

Ximengite Mineral Data

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General Ximengite Information

Help on Chemical  Formula: Chemical Formula: BiPO4
Help on Composition: Composition: Molecular Weight = 303.95 gm
   Bismuth     68.75 %  Bi   76.65 % Bi2O3
   Phosphorus  10.19 %  P    23.35 % P2O5
   Oxygen      21.06 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi(PO4)
Help on Environment: Environment: Alteration product of bismuthinite in a tin deposit.
Help on IMA Status: IMA Status: Approved IMA 1990
Help on Locality: Locality: Undefined locality in Ximeng Co., about 420 km southwest of Kunming, Yunnan Province, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Ximengite + Pronunciation Say XIMENGITE

Ximengite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.92689
Help on Cell Dimensions: Cell Dimensions: a = 6.986, c = 6.4753, Z = 3; V = 273.68 Den(Calc)= 5.53
Help on Crystal System: Crystal System: Trigonal - Trapezohedral H-M Symbol (3 2) Space Group: P 3121
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.0244(1), 4.4198(0.91), 3.493(0.88),

Physical Properties of Ximengite

Help on Color: Color: Colorless.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: white

Optical Properties of Ximengite

Help on Optical Data: Optical Data: NCalc= 1.88 - from Gladstone-Dale relationship (KC = 0.16) where Ncalc=Dcalc*KC+1

Calculated Properties of Ximengite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.73 gm/cc
note: Specific Gravity of Ximengite =5.53 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001017524
Boson Index = 0.9998982476
Help on Photoelectric: Photoelectric: PEXimengite =1,294.07 barns/electron
U=PEXimengite x rElectron Density=6,121.42 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ximengite is Not Radioactive

Ximengite Classification

Help on  Dana Class: Dana Class: (38)Anhydrous Phosphates, etc
  (38.04)A+ XO4
  (38.04.09)Dana Group Ximengite BiPO4 P 3121 3 2
Help on  Strunz Class: Strunz Class: 08.AD.45 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AD -With only large cations
08.AD.45 Ximengite BiPO4 P 3121 3 2

Other Ximengite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.76,p1436,1991)
Help on See Also: See Also: Links to other databases for Ximengite :
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.AD.45