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Lithiophosphate

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About LithiophosphateHide

Formula:
Li3PO4
Colour:
White, light pink, colourless
Lustre:
Vitreous, Sub-Vitreous
Hardness:
4
Specific Gravity:
2.46 - 2.478
Crystal System:
Orthorhombic
Name:
Named in 1957 by V. V. Matias and A. M. Bondareva for the chemical composition Lithio- and PHOSphate.
This page provides mineralogical data about Lithiophosphate.


Classification of LithiophosphateHide

Approved, 'Grandfathered' (first described prior to 1959)
8.AA.20

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
A : With small cations (some also with larger ones)
38.4.10.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
19.1.1

19 : Phosphates
1 : Phosphates of the alkali metals

Physical Properties of LithiophosphateHide

Vitreous, Sub-Vitreous
Transparency:
Transparent, Translucent
Colour:
White, light pink, colourless
Streak:
White
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
Density:
2.46 - 2.478 g/cm3 (Measured)    2.479 g/cm3 (Calculated)

Optical Data of LithiophosphateHide

Type:
Biaxial (+)
RI values:
nα = 1.550 - 1.553 nβ = 1.557 - 1.558 nγ = 1.566 - 1.567
2V:
Measured: 69° to 80°, Calculated: 74° to 84°
Birefringence:
0.015
Max Birefringence:
δ = 0.016
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v weak
Optical Extinction:
XYZ = cab
Pleochroism:
Non-pleochroic

Chemical Properties of LithiophosphateHide

Formula:
Li3PO4
IMA Formula:
Li3(PO4)

Crystallography of LithiophosphateHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Pmn21
Setting:
Pmn21
Cell Parameters:
a = 6.115 Å, b = 5.234 Å, c = 4.845 Å
Ratio:
a:b:c = 1.168 : 1 : 0.926
Unit Cell V:
155.07 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Elongated crystals with striations || to elongation, also massive granular

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.965 (100)
3.794 (90)
3.552 (80)
2.635 (100)
2.420 (90)
2.311 (90)
1.513 (90)
Comments:
Synthetic material

Type Occurrence of LithiophosphateHide

General Appearance of Type Material:
White to pale pink grains in aggregates to 9 x 5 x 4 cm
Geological Setting of Type Material:
Granite pegmatite
Associated Minerals at Type Locality:

Other Language Names for LithiophosphateHide

Common AssociatesHide

AlbiteNa(AlSi3O8)
BerylBe3Al2(Si6O18)
CassiteriteSnO2
ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
FluorapatiteCa5(PO4)3F
Hureaulite(Mn,Fe)5(PO4)2(HPO4)2 · 4H2O
JahnsiteA generic name for a number of difficult to distinguish members in the Jahnsite Subgroup.
LepidoliteA Li-rich mica in, or close to, the so-called Polylithionite-Trilithionite series.
MontebrasiteLiAl(PO4)(OH)
Pollucite(Cs,Na)2(Al2Si4O12) · 2H2O
QuartzSiO2
RockbridgeiteFe2+Fe3+4(PO4)3(OH)5
Switzerite(Mn,Fe)3(PO4)2 · 7H2O
Tantalite(Mn,Fe)(Ta,Nb)2O6
Associated Minerals Based on Photo Data:
Rhodochrosite4 photos of Lithiophosphate associated with Rhodochrosite on mindat.org.
Dorfmanite2 photos of Lithiophosphate associated with Dorfmanite on mindat.org.
Wodginite2 photos of Lithiophosphate associated with Wodginite on mindat.org.
Cesian Analcime2 photos of Lithiophosphate associated with Cesian Analcime on mindat.org.
Fluorapatite1 photo of Lithiophosphate associated with Fluorapatite on mindat.org.
Apatite1 photo of Lithiophosphate associated with Apatite on mindat.org.
Cosalite1 photo of Lithiophosphate associated with Cosalite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.AA.05AlarsiteAlAsO4Trig. 3 2 : P31 2 1
8.AA.05BerliniteAlPO4Trig. 3 2 : P31 2 1
8.AA.05RodolicoiteFe3+PO4Trig. 3 2 : P31 2 1
8.AA.10BerylloniteNaBePO4Mon. 2/m : P21/b
8.AA.15HurlbutiteCaBe2(PO4)2Mon.
8.AA.25NalipoiteNaLi2PO4Orth.
8.AA.30OlympiteNa5Li(PO4)2Orth.

Related Minerals - Dana Grouping (8th Ed.)Hide

38.4.10.2OlympiteNa5Li(PO4)2Orth.
38.4.10.3NalipoiteNaLi2PO4Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.1.2OlympiteNa5Li(PO4)2Orth.
19.1.3NahpoiteNa2HPO4Mon. 2/m : P21/m
19.1.4DorfmaniteNa2HPO4 · 2H2OOrth.
19.1.5NalipoiteNaLi2PO4Orth.
19.1.6StercoriteNa(NH4)HPO4 · 4H2OTric.
19.1.7Archerite(K,NH4)(H2PO4)Tet. 4 2m : I4 2d
19.1.8Biphosphammite(NH4,K)(H2PO4)Tet. 4 2 2 : I41 2 2
19.1.9Phosphammite(NH4)2(HPO4)Mon. 2/m : P21/b
19.1.10LithiophiliteLiMn2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
19.1.11SickleriteLi1-x(Mn3+xMn2+1-x)PO4Orth.
19.1.12FerrisickleriteLi1-x(Fe3+xFe2+1-x)PO4Orth.
19.1.13TriphyliteLiFe2+PO4Orth. mmm (2/m 2/m 2/m) : Pmna
19.1.14TavoriteLiFe3+(PO4)(OH)Tric. 1 : P1
19.1.15MarićiteNaFe2+(PO4)Orth. mmm (2/m 2/m 2/m) : Pmna

Fluorescence of LithiophosphateHide

Not fluorescent in UV

Other InformationHide

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

References for LithiophosphateHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1957): 42: 585.
Doklady Akademii Nauk SSSR: 112(1): 124-126.
Crystallography Reports: 39(1): 35-41.
Soviet Physics – Doklady (1978): 23: 287.

Internet Links for LithiophosphateHide

Localities for LithiophosphateHide

ⓘ - Click for 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • Western Australia
    • Bridgetown-Greenbushes Shire
      • Greenbushes Tinfield
Magna, T., Novák, M., Cempírek, J., Janoušek, V., Ullmann, C. V., Wiechert, U. (2016) Crystallographic control on lithium isotope fractionation in Archean to Cenozoic LCT [lithium-cesium-tantalum] pegmatites. Geology, 44(8), 655-658.
Brazil
 
  • Minas Gerais
    • Itinga
      • Taquaral
        • Piauí valley
Luiz Alberto Dias Menezes Filho, Mario Luiz de Sá Carneiro Chaves, Coralie Heinis Dias, Daniel Atencio (2016): Recent mineral discoveries in the Coronel Murta, Taquaral, and Medina pegmatite fields, northeastern Minas Gerais, Brazil. REM - Int. Eng. J. 69, 301-307. [http://www.scielo.br/pdf/remi/v69n3/2448-167X-remi-69-03-0301.pdf].; Donald Doell Collection
Canada
 
  • Manitoba
    • Lac-du-Bonnet area
      • Bernic Lake
Tschernich, R. (1992): Zeolites of the World, p.51; Canadian Mineralogist(1980) 18, 185-190
Morocco
 
  • Marrakech-Safi Region
    • Rehamna Province
      • Jebilet Mtn (Djebilet Mtn)
        • Sidi Bou Othmane
Favreau, G. (2012): Deux pegmatites à phosphates de Sidi Bou Othmane (Maroc). Le Cahier des Micromonteurs, 3-2012, 71-109
Russia (TL)
 
  • Murmansk Oblast
    • Voron'i Tundry
DAN-SSSR (1957) 112, 124-126; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
USA
 
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Jan H.Bernard and Jaroslav Hyrsl,2004, Minerals and their Localities, pg # 357; Am Min 54 (1969), 1467-1469; Rocks and Minerals, (1985) 60:76-82; Carolina Geological Society Field Trip Guidebook 1981, 39-48
  • South Dakota
    • Custer Co.
      • Custer District
        • Fourmile
Mineralogical Record: 17: 237-254; Rocks & Minerals: 60: 117.
Mineral and/or Locality  
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