Ximengite Mineral Data + 
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Special Collections of Rough Diamonds for Researchers and Collectors
Unparalled diversity of specimens from different locations
- 38.4.9.1 Ximengite BiPO4 P 3121 3 2
- VII/A.18-10 Gasparite-(Ce) CeAsO4 P 21/n 2/m
- VII/A.18-20 Rooseveltite BiAsO4 P 2/m 2/m
- VII/A.18-30 Tetrarooseveltite BiAsO4 I 41/a 4/m
- VII/A.18-40 Ximengite BiPO4 P 3121 3 2
General Ximengite Information |
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 Chemical Formula: |
BiPO4 | ||
| 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 | |||
| Empirical Formula: |
Bi(PO4) | ||
| IMA Status: |
Approved IMA 1990 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
Search for Ximengite Images | |||
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Images:
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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 - TrapezohedralH-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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Crystal Structure:
Mouse |
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Physical Properties of Ximengite |
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| Color: |
Colorless. | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
4.5 - Between Fluorite and Apatite | ||
| Luster: |
Vitreous - Greasy | ||
| Streak: |
white | ||
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: |
relectron=4.73 gm/cc |
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| Fermion Index |
Fermion Index = 0.0001 Boson Index = 0.9999 |
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| Photoelectric: |
PEXimengite =1,294.07 barns/electron |
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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: |
38.4.9.1 (38)Anhydrous Phosphates, etc | ||
| (38.4)A+ XO4 | |||
| (38.4.9)Dana Group | |||
| Strunz Class: |
VII/A.18-40 VII - Phosphates, Arsenates and Vanadates | ||
| VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions, cations of very big size: Ca, Na and andre | |||
| VII/A.18 - Gasparite series | |||
Other Ximengite Information |
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| References: |
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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Ximengite using: Visit our Advertisers for Ximengite : Translate Ximengite Mineral Data : Ask about Ximengite here : Print or Cut-and-Paste your Ximengite Specimen Label here :
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