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Olympite

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Formula:
Na
 
5
Li(PO
 
4
)
 
2
System:OrthorhombicColour:Colourless
Lustre:VitreousHardness:4
This page provides mineralogical data about Olympite.

Classification of Olympite

IMA status:Approved 1979
Strunz 8th edition ID:7/A.01-27
Nickel-Strunz 10th (pending) edition ID:8.AA.30

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
A : With small cations (some also with larger ones)
Dana 8th edition ID:38.4.10.2

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
Hey's CIM Ref.:19.1.2

19 : Phosphates
1 : Phosphates of the alkali metals
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Type Occurrence of Olympite

Type Locality:Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Year of Discovery:1979

Physical Properties of Olympite

Lustre:Vitreous
Colour:Colourless
Streak:White
Hardness (Mohs):4
Cleavage:None Observed

Crystallography of Olympite

Crystal System:Orthorhombic
Cell Parameters:a = 10.12Å, b = 14.79Å, c = 10.13Å
Ratio:a:b:c = 0.684 : 1 : 0.685
Unit Cell Volume:V 1,516.21 ų (Calculated from Unit Cell)

Optical Data of Olympite

Type:Biaxial (+)
RI values: nα = 1.510 nβ = 1.510 nγ = 1.512
2V:Measured: 46°
Maximum Birefringence:δ = 0.002

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:relatively strong

Chemical Properties of Olympite

Formula:
Na
 
5
Li(PO
 
4
)
 
2
Essential elements:Na, O, P
All elements listed in formula:Li, Na, O, P

Relationship of Olympite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.AA.05Alarsite
AlAsO
 
4
8.AA.05Berlinite
AlPO
 
4
8.AA.05Rodolicoite
Fe
3+
 
PO
 
4
8.AA.10Beryllonite
NaBePO
 
4
8.AA.15Hurlbutite
CaBe
 
2
(PO
 
4
)
 
2
8.AA.20Lithiophosphate
Li
 
3
PO
 
4
8.AA.25Nalipoite
NaLi
 
2
PO
 
4
Related Minerals - Hey's Index Grouping:

- +
19.1.1Lithiophosphate
Li
 
3
PO
 
4
19.1.3Nahpoite
Na
 
2
HPO
 
4
19.1.4Dorfmanite
Na
 
2
HPO
 
4
 · 2H
 
2
O
19.1.5Nalipoite
NaLi
 
2
PO
 
4
19.1.6Stercorite
Na(NH
 
4
)HPO
 
4
 · 4H
 
2
O
19.1.7Archerite
(K,NH
 
4
)(H
 
2
PO
 
4
)
19.1.8Biphosphammite
(NH
 
4
,K)(H
 
2
PO
 
4
)
19.1.9Phosphammite
(NH
 
4
)
 
2
(HPO
 
4
)
19.1.10Lithiophilite
LiMn
2+
 
PO
 
4
19.1.11Sicklerite
LiMn
2+
 
PO
 
4
19.1.12Ferrisicklerite
Li
 
1-x
(Fe
3+
 
,Mn
2+
 
)PO
 
4
19.1.13Triphylite
LiFe
2+
 
PO
 
4
19.1.14Tavorite
LiFe
3+
 
(PO
 
4
)(OH)
19.1.15Marićite
NaFe
2+
 
(PO
 
4
)

Other Names for Olympite

Synonyms:
IMA1979-065
Other Languages:
German:Olympit
Russian:Олимпит
Spanish:Olympita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Olympite

Reference List:

- +
American Mineralogist (1981): 66: 438.

American Mineralogist (1995): 80: 408.

Doklady Rossiiskoi Akademii Nauk: 327: 499-503 (in Russian).

Internet Links for Olympite

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  • Raman and XRD data at RRUFF project
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    • Localities for Olympite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		[Clark, 1993 - "Hey's Mineral Index"]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    www.koeln.netsurf.de/~w.steffens/lovo.htm
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