Olympite
A valid IMA mineral species
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1980 Summer Olympics Emblem
Formula:
Na5Li(PO4)2
Colour:
Colourless
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
2.8
Crystal System:
Orthorhombic
Name:
Named by A.P. Khomyakov, A.V. Bykova, and Y.A. Malinovskii in 1980 in honor of the 1980 Summer Olympic Games, in Moscow, USSR.
Type Locality:
This page provides mineralogical data about Olympite.
Unique Identifiers
Mindat ID:
2989
Long-form identifier:
mindat:1:1:2989:2
IMA Classification of Olympite
Approved
IMA Formula:
LiNa5(PO4)2
Approval year:
1979
First published:
1980
Classification of Olympite
8.AA.30
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
A : With small cations (some also with larger ones)
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
A : With small cations (some also with larger ones)
38.4.10.2
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
19.1.2
19 : Phosphates
1 : Phosphates of the alkali metals
19 : Phosphates
1 : Phosphates of the alkali metals
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Oly | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Olympite
Vitreous
Transparency:
Translucent
Colour:
Colourless
Streak:
White
Hardness:
4 on Mohs scale
Hardness:
VHN40=274 - 395 kg/mm2 - Vickers
Comment:
VHN 310 average.
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
2.8 g/cm3 (Measured) 2.85 g/cm3 (Calculated)
Optical Data of Olympite
Type:
Biaxial (+)
RI values:
nα = 1.510(2) nβ = 1.510(2) nγ = 1.512(2)
2V:
Measured: 46° (1)
Max. Birefringence:
δ = 0.002
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Dispersion:
relatively strong
Chemistry of Olympite
Mindat Formula:
Na5Li(PO4)2
Element Weights:
Elements listed:
Crystallography of Olympite
Crystal System:
Orthorhombic
Class (H-M):
222 - Disphenoidal
Space Group:
P212121
Cell Parameters:
a = 10.124(2) Å, b = 14.794(2) Å, c = 10.132(3) Å
Ratio:
a:b:c = 0.684 : 1 : 0.685
Unit Cell V:
1,517.51 ų (Calculated from Unit Cell)
Z:
8
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0012344 | Olympite | Rastsvetaeva R K, Khomyakov A P (1994) A comparative crystal-chemical study of the lithium-sodium phosphates (lithiophosphate, nalipoite, olympite, and Na3PO4) Crystallography Reports 39 35-41 | 1994 | Khibini alkaline massif, Kola Peninsula, Russia | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.582 Å | (10) |
| 4.18 Å | (9) |
| 2.531 Å | (7) |
| 2.433 Å | (7) |
| 1.472 Å | (7) |
| 3.58 Å | (6) |
| 3.70 Å | (5) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Olympite
General Appearance of Type Material:
Oval grains, to 5 mm.
Place of Conservation of Type Material:
Geology Museum, Kola Branch, Academy of Sciences, Apatity, 5533.
Mining Institute, St. Petersburg, 1208/1.
I.M.G.R.E., Moscow.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 80180.
Mining Institute, St. Petersburg, 1208/1.
I.M.G.R.E., Moscow.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 80180.
Geological Setting of Type Material:
Nepheline syenite pegmatite.
Associated Minerals at Type Locality:
Synonyms of Olympite
Other Language Names for Olympite
Related Minerals - Strunz-mindat Grouping
| 8.AA.05 | Alarsite | AlAsO4 |
| 8.AA.05 | Berlinite | AlPO4 |
| 8.AA.10 | Beryllonite | NaBePO4 |
| 8.AA.15 | Hurlbutite | CaBe2(PO4)2 |
| 8.AA.20 | Lithiophosphate | Li3PO4 |
| 8.AA.25 | Nalipoite | NaLi2PO4 |
Other Information
Notes:
Easily soluble in cold H2O;
Special Storage/
Display Requirements:
Display Requirements:
decomposes rapidly in air
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Olympite
mindat.org URL:
https://www.mindat.org/min-2989.html
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References for Olympite
Localities for Olympite
Showing 2 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Russia | |
| ... |
| Clark (1993) +2 other references |
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