Nalipoite Mineral Data

General Nalipoite Information

Chemical Formula:

NaLi2PO4

Composition:

Molecular Weight = 131.84 gm

Sodium 17.44 % Na 23.50 % Na₂O

Lithium 10.53 % Li 22.66 % Li₂O

Phosphorus 23.49 % P 53.83 % P₂O₅

Oxygen 48.54 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaLi₂(PO₄)

Environment:

Sodalite syenite xenoliths associated with an intrusive alkalic gabbro-syenite complex.

IMA Status:

Approved IMA 1991

Locality:

Mont Saint-Hilaire, Quebec, Canada. Link to MinDat.org Location Data.

Name Origin:

Named for the principal chemical components in the composition, sodium Natrium, Lithium, Phosphorus, and Oxygen.

Name Pronunciation:

Nalipoite + Pronunciation

Synonym:

ICSD 69967

IMA1990-030

PDF 45-1348

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Nalipoite Crystallography

Axial Ratios:

a:b:c =0.69:1:0.4938

Cell Dimensions:

a = 6.884, b = 9.976, c = 4.927, Z = 4; V = 338.36 Den(Calc)= 2.59

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmnb

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.441(1), 3.507(1), 4.02(1),

Crystal Structure:

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Ercit T S , The Canadian Mineralogist , 29 (1991) p.569-573, The crystal structure of nalipoite

Physical Properties of Nalipoite

Color:

White, Light blue, Light yellow.

Density:

2.58

Diaphaneity:

Transparent to Translucent

Hardness:

4 - Fluorite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Nalipoite

Gladstone-Dale:

CI meas= 0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.024 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2077,KPDmeas= 0.2085,KC= 0.2127
Ncalc = 1.55

Optical Data:

Biaxial (-), a=1.533, b=1.54, g=1.541, bire=0.0080, 2V(Calc)=40, 2V(Meas)=41-49.

Calculated Properties of Nalipoite

Electron Density:

Bulk Density (Electron Density)=2.50 gm/cc
note: Specific Gravity of Nalipoite =2.58 gm/cc.

Fermion Index:

Fermion Index = 0.0081298802
Boson Index = 0.9918701198

Photoelectric:

PE_Nalipoite= 1.47 barns/electron
U=PE_Nalipoite x rElectron Density= 3.68 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nalipoite is Not Radioactive

Nalipoite Classification

Dana Class:

38.04.10.03 (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

Strunz Class:

08.AA.25 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.25 Nalipoite NaLi2PO4 Pmnb 2/m 2/m 2/m

Other Nalipoite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.77,p449,1992) OPTIC PROP.(Am.Min.,Vol.77,p449,1992)

See Also:

Links to other databases for Nalipoite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST

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Print or Cut-and-Paste your Nalipoite Specimen Label here :

Nalipoite

NaLi2PO4
Dana No: 38.04.10.03 Strunz No: 08.AA.25
Locality:

Notes: