Babefphite Mineral Data + 
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- 41.5.3.1 Babefphite BaBe(PO4)(F,O) I 41/amd 4/m 2/m 2/m
- VII/B.01-10 Herderite CaBe(PO4)F P 21/a 2/m
- VII/B.01-20 Hydroxylherderite CaBe(PO4)(OH) P 21/a 2/m
- VII/B.01-30 Bergslagite CaBe(AsO4)(OH) P 21/c 2/m
- VII/B.01-50 Vayrynenite MnBe(PO4)(OH,F) P 21/a 2/m
- VII/B.01-60 Babefphite BaBe(PO4)(F,O) I 41/amd 4/m 2/m 2/m
General Babefphite Information |
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 Chemical Formula: |
BaBe(PO4)(F,O) | ||
| Composition: |
Molecular Weight = 259.56 gm | ||
| Barium 52.91 % Ba 59.07 % BaO | |||
| Beryllium 3.47 % Be 9.64 % BeO | |||
| Phosphorus 11.93 % P 27.34 % P2O5 | |||
| Oxygen 26.20 % O | |||
| Fluorine 5.49 % F 5.49 % F | |||
| - % F -2.31 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 99.23 % = TOTAL OXIDE | |||
| Empirical Formula: |
BaBe(PO4)F0.75O0.25 | ||
| Environment: |
In eluvium directly above rare-metal skarn deposits associated with alkaline intrusions. | ||
| IMA Status: |
Approved IMA 1966 | ||
| Locality: |
Occurs in the Aunik fluorite-rare metals deposit, Buryatia, Russia. Link to MinDat.org Location Data. | ||
| Name Origin: |
For Barium, Beryllium, Fluorine, and Phosphorous in the composition. | ||
| Synonym: |
ICSD 200922 | ||
| PDF 18-157 | |||
Search for Babefphite Images | |||
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Images:
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Babefphite Crystallography |
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| Axial Ratios: |
a:c = 1:3.42331 | ||
| Cell Dimensions: |
a = 4.89, c = 16.74, Z = 4; V = 400.29 Den(Calc)= 4.31 | ||
| Crystal System: |
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 41/amd | ||
| X Ray Diffraction: |
By Intensity(I/Io): 1.516(1), 2.163(1), 3.19(1), | ||
Physical Properties of Babefphite |
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| Cleavage: |
None | ||
| Color: |
White. | ||
| Density: |
4.31 | ||
| Diaphaniety: |
Transparent | ||
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. | ||
| Hardness: |
3.5-4 - Copper Penny-Fluorite | ||
| Luster: |
Vitreous - Greasy | ||
| Streak: |
white | ||
Optical Properties of Babefphite |
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| Gladstone-Dale: |
CI meas= 0.033 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.033 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1463,KPDmeas= 0.1463,KC= 0.1514 |
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| Optical Data: |
Uniaxial (+), w=1.629, e=1.632, bire=0.0030. | ||
Calculated Properties of Babefphite |
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| Electron Density: |
relectron=3.84 gm/cc |
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| Fermion Index |
Fermion Index = 0.12913 Boson Index = 0.87087 |
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| Photoelectric: |
PEBabefphite = 238.46 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Babefphite is Not Radioactive |
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Babefphite Classification |
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| Dana Class: |
41.5.3.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
| (41.5)where (A B)2 (XO4) Zq | |||
| (41.5.3)Dana Group | |||
| Strunz Class: |
VII/B.01-60 VII - Phosphates, Arsenates and Vanadates | ||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of very small size: Li, Be | |||
| VII/B.01 - Herderite - Babefphite series | |||
Other Babefphite Information |
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| References: |
NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Babefphite : 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 - WWW-MINCRYST 13 -École des Mines de Paris Search for Babefphite using: Visit our Advertisers for Babefphite : Translate Babefphite Mineral Data : Ask about Babefphite here : Print or Cut-and-Paste your Babefphite Specimen Label here :
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