Olympite Mineral Data + 
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Dan Weinrich Fine Minerals
Full-time professional mineral dealer with over 31 years experience in mineral collecting
And 15 years selling mineral specimens on the internet and at major mineral shows
- 38.4.10.1 Lithiophosphate Li3PO4 P mn21 mm2
- 38.4.10.2 Olympite LiNa5(PO4)2 P 212121 2 2 2
- 38.4.10.3 Nalipoite NaLi2PO4 Pmnb 2/m 2/m 2/m
- VII/A.03-10 Nahpoite Na2HPO4 P 21/m,P 21 Mono
- VII/A.03-20 Olympite LiNa5(PO4)2 P 212121 2 2 2
- VII/A.03-30 Buchwaldite NaCaPO4 P mn21 mm2
General Olympite Information |
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 Chemical Formula: |
LiNa5(PO4)2 | ||
| Composition: |
Molecular Weight = 311.83 gm | ||
| Sodium 36.86 % Na 49.69 % Na2O | |||
| Lithium 2.23 % Li 4.79 % Li2O | |||
| Phosphorus 19.87 % P 45.52 % P2O5 | |||
| Oxygen 41.05 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
LiNa5(PO4)2 | ||
| IMA Status: |
Approved IMA 1980 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 64931 | ||
| PDF 33-1272 | |||
Search for Olympite Images | |||
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Images:
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Olympite Crystallography |
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| Axial Ratios: |
a:b:c =0.6843:1:0.6848 | ||
| Cell Dimensions: |
a = 10.124, b = 14.794, c = 10.132, Z = 8; V = 1,517.51 Den(Calc)= 2.73 | ||
| Crystal System: |
Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 212121 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.582(1), 4.18(0.9), 2.531(0.7), | ||
Physical Properties of Olympite |
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| Cleavage: |
None | ||
| Color: |
Colorless. | ||
| Density: |
2.8 | ||
| Diaphaniety: |
Translucent | ||
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
| Hardness: |
4 - Fluorite | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Olympite |
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| Gladstone-Dale: |
CI meas= 0.052 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.028 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1871,KPDmeas= 0.1824,KC= 0.1924 |
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| Optical Data: |
Biaxial (+), a=1.51, b=1.51, g=1.512, bire=0.0020, 2V(Calc)=0, 2V(Meas)=46. | ||
Calculated Properties of Olympite |
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| Electron Density: |
relectron=2.66 gm/cc |
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| Fermion Index |
Fermion Index = 0.00186 Boson Index = 0.99814 |
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| Photoelectric: |
PEOlympite = 1.54 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Olympite is Not Radioactive |
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Olympite Classification |
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| Dana Class: |
38.4.10.2 (38)Anhydrous Phosphates, etc | ||
| (38.4)A+ XO4 | |||
| (38.4.10)Dana Group | |||
| Strunz Class: |
VII/A.03-20 VII - Phosphates, Arsenates and Vanadates | ||
| VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions. cations of medium size: Mostly Fe, Mn | |||
| VII/A.03 - Nahpoite series | |||
Other Olympite Information |
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| References: |
PHYS. PROP.(Am.Min.,Vol.79,p571,1994) OPTIC PROP.(Am.Min.,Vol.79,p571,1994) | ||
| See Also: |
Links to other databases for Olympite : 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 Olympite using: Visit our Advertisers for Olympite : Translate Olympite Mineral Data : Ask about Olympite here : Print or Cut-and-Paste your Olympite Specimen Label here :
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