Olympite Mineral Data

Olympite Mineral Data
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General Olympite Information

Help on Chemical Formula: Chemical Formula: LiNa5(PO4)2
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: LiNa5(PO4)2
Help on Environment: Environment: Ultra-alkalic phase in nepheline syenite pegmatites in differentiated alkalic massifs.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Mt. Rasvumchorr, Khibiny massif, and in the Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the 1980 Summer Olympic Games, in Moscow, USSR.
Help on Name Pronunciation: Name Pronunciation: Olympite Say OLYMPITE
Help on Synonym: Synonym: ICSD 64931
  PDF 33-1272
 

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Olympite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.6843:1:0.6848
Help on Cell Dimensions: Cell Dimensions: a = 10.124, b = 14.794, c = 10.132, Z = 8; V = 1,517.51 Den(Calc)= 2.73
Help on Crystal System: Crystal System: Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 212121
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.582(1), 4.18(0.9), 2.531(0.7),
Click Here for Large Olympite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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I - Data Info
A - Atoms On/Off
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B - Bonds On/Off
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Rastsvetaeva R K , Khomyakov A P , Crystallography Reports , 39 (1994) p.35-41, A comparative crystal-chemical study of the lithium-sodium phosphates, (lithiophosphate, nalipoite, olympite, and Na3PO4), Locality: Khibini alkaline massif, Kola Peninsula, Russia, Note: O5(y) made negative to match reported bond distances

 

Physical Properties of Olympite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless.
Help on Density: Density: 2.8
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Olympite

Help on Gladstone-Dale: 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
Ncalc = 1.53 - 1.54
Help on Optical Data: 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

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.66 gm/cc
note: Specific Gravity of Olympite =2.73 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0018664269
Boson Index = 0.9981335731
Help on Photoelectric: Photoelectric: PEOlympite = 1.54 barns/electron
U=PEOlympite x rElectron Density= 4.10 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Olympite is Not Radioactive
 

Olympite Classification
Help on Dana Class: Dana Class: 38.04.10.02 (38)Anhydrous Phosphates, etc
  (38.04)A+ XO4
  (38.04.10)Lithiophosphate Group
 
38.04.10.01 Lithiophosphate Li3PO4 P mn21 mm2
 
38.04.10.02 Olympite LiNa5(PO4)2 P 212121 2 2 2
 
38.04.10.03 Nalipoite NaLi2PO4 Pmnb 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 08.AA.30 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AA -With small cations (some also with larger ones)
 
08.AA.30 Olympite LiNa5(PO4)2 P 212121 2 2 2
 

Other Olympite Information
Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.79,p571,1994) OPTIC PROP.(Am.Min.,Vol.79,p571,1994)
Help on See Also: See Also: Links to other databases for Olympite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Ask about Olympite here :
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Print or Cut-and-Paste your Olympite Specimen Label here :

Olympite

LiNa5(PO4)2
Dana No: 38.04.10.02 Strunz No: 08.AA.30
Locality:

 

Notes: