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Ximengite Mineral Data
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General Ximengite Information
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 Chemical Formula: |
BiPO4 |
| Composition: |
Molecular Weight = 303.95 gm |
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Bismuth 68.75 % Bi 76.65 % Bi2O3 |
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Phosphorus 10.19 % P 23.35 % P2O5 |
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Oxygen 21.06 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Bi(PO4) |
| Environment: |
Alteration product of bismuthinite in a tin deposit. |
| IMA Status: |
Approved IMA 1990 |
| Locality: |
Undefined locality in Ximeng Co., about 420 km southwest of Kunming, Yunnan Province, China. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Ximengite + Pronunciation  |
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Ximengite Crystallography
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| Axial Ratios: |
a:c = 1:0.92689 |
| Cell Dimensions: |
a = 6.986, c = 6.4753, Z = 3; V = 273.68 Den(Calc)= 5.53 |
| Crystal System: |
Trigonal - Trapezohedral H-M Symbol (3 2) Space Group: P 3121 |
| X Ray Diffraction: |
By Intensity(I/Io): 3.0244(1), 4.4198(0.91), 3.493(0.88), |
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Physical Properties of Ximengite
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| Color: |
Colorless. |
| Diaphaneity: |
Transparent |
| Hardness: |
4.5 - Between Fluorite and Apatite |
| Luster: |
Vitreous - Greasy |
| Streak: |
white |
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Optical Properties of Ximengite
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| Optical Data: |
NCalc= 1.88 - from Gladstone-Dale relationship (KC = 0.16) where Ncalc=Dcalc*KC+1
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Calculated Properties of Ximengite
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| Electron Density: |
Bulk Density (Electron Density)=4.73 gm/cc
note: Specific Gravity of Ximengite =5.53 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0001017524
Boson Index = 0.9998982476 |
| Photoelectric: |
PEXimengite =1,294.07 barns/electron
U=PEXimengite x rElectron Density=6,121.42 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ximengite is Not Radioactive |
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Ximengite Classification
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| Dana Class: |
38.04.09.01 (38)Anhydrous Phosphates, etc |
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(38.04)A+ XO4 |
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(38.04.09)Dana Group |
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38.04.09.01 Ximengite BiPO4 P 3121 3 2 |
| Strunz Class: |
08.AD.45 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.A - Phosphates, etc. without additional anions, without H2O |
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08.AD -With only large cations |
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08.AD.45 Ximengite BiPO4 P 3121 3 2 |
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Other Ximengite Information
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| References: |
NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.76,p1436,1991) |
| 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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Print or Cut-and-Paste your Ximengite Specimen Label here :
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Ximengite
BiPO4
Dana No: 38.04.09.01 Strunz No: 08.AD.45
Locality:
Notes:
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