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Magniotriplite

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Formula:
(Mg,Fe2+,Mn2+)2PO4F
System:
Monoclinic
Colour:
Reddish-brown.
Lustre:
Vitreous
Hardness:
4
Name:
Named in 1951 by Ginzburg et al. for the supposed relation to triplite.
A variety of Wagnerite

A discredited iron- and magnesium-rich structural variety (polytype) of wagnerite.

Originally described from Karasu granite pegmatite, Turkestan Range, Osh Oblast, Kyrgyzstan and Kyrk-Bulak granite pegmatite, Turkestan Range, Osh Oblast, Kyrgyzstan.

Classification of Magniotriplite

Discredited 2003
41.6.1.3

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
22.1.24

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
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Physical Properties of Magniotriplite

Vitreous
Colour:
Reddish-brown.
Hardness (Mohs):
4

Crystallography of Magniotriplite

Crystal System:
Monoclinic
Cell Parameters:
a = 11.92Å, b = 12.27Å, c = 9.66Å
β = 107.18°
Ratio:
a:b:c = 0.971 : 1 : 0.787
Unit Cell Volume:
V 1,349.82 ų (Calculated from Unit Cell)

Optical Data of Magniotriplite

Type:
Biaxial (+)
RI values:
nα = 1.641 nβ = 1.649 nγ = 1.661
2V:
Measured: 60° , Calculated: 80°
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak

Chemical Properties of Magniotriplite

Formula:
(Mg,Fe2+,Mn2+)2PO4F
Essential elements:
All elements listed in formula:

Relationship of Magniotriplite to other Species

22.1.1AmblygoniteLiAl(PO4)F
22.1.2LacroixiteNaAl(PO4)F
22.1.3NatrophosphateNa7(PO4)2F · 19H2O
22.1.5NacaphiteNa2Ca(PO4)F
22.1.6ArctiteNa2Ca4(PO4)3F
22.1.7NefedoviteNa5Ca4(PO4)4F
22.1.9FluorapatiteCa2Ca3(PO4)3F
22.1.10HerderiteCaBePO4(F,OH)
22.1.11IsokiteCaMg(PO4)F
22.1.12PanasqueiraiteCaMg(PO4)(OH,F)
22.1.13BabefphiteBaBePO4(F,OH)
22.1.14FluelliteAl2(PO4)F2(OH) · 7H2O
22.1.15MinyuliteKAl2(PO4)2(OH,F) · 4H2O
22.1.16MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
22.1.17BøggilditeNa2Sr2Al2PO4F9
22.1.18FluorstrophiteSrCaSr3(PO4)3F
22.1.19ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3
22.1.20VäyryneniteMn2+Be(PO4)(OH,F)
22.1.21MaxwelliteNaFe3+(AsO4)F
22.1.22Wagnerite(Mg,Fe2+)2(PO4)F
22.1.23Triplite(Mn2+,Fe2+)2(PO4)(F,OH)
22.1.25Zwieselite(Fe2+,Mn2+)2(PO4)F
22.1.26McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2O
22.1.27RichelliteCaFe23+(PO4)2(OH,F)2
22.1.28SvabiteCa5(AsO4)3F
22.1.29TilasiteCaMg(AsO4)F
22.1.30Johnbaumite-MCa5(AsO4)3OH
22.1.31DurangiteNaAl(AsO4)F

Other Names for Magniotriplite

Name in Other Languages:

Other Information

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 Magniotriplite

Reference List:
Ginzburg, A. I.; Kruglova, N. A.; Moleva, V. A. (1951): Magnesiotriplite, a new mineral of the triplite group. Doklady Akademii Nauk SSSR: 77: 97-100. (in Russian).

American Mineralogist (1952): 37: 359-360.

Bulletin de la Société française de Minéralogie et de Cristallographie: 104: 677-680.

Ren, L., Grew, E.S., Xiong, M. & Ma, Z. (2003): Wagnerite-Ma5bc, a new polytype of Mg2(PO4)(F,OH), from granulite-facies paragneiss, Larsemann Hills, Prydz Bay, East Antarctica. Canadian Mineralogist 41, 393-411

Chopin, C., Th. Armbruster, A. Baronnet, E.S. Grew (2004): Bulletin de liaison de la Société Francaise de Minéralogie et Crystallographie: 16(2): 33-34.

Internet Links for Magniotriplite

Localities for Magniotriplite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Australia
 
  • South Australia
    • Olary Province
      • Bimbowrie Station
Lottermoser, B.G., and Lu, J. (1997): Mineralogy and Petrology 59, 1-19.
Kyrgyzstan
 
  • Osh Oblast
    • Turkestan Range
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
[DAN-SSSR (1951) 77/1, 97-100; Nickel & Nichols, 1991 - "Mineral Reference Manual", p126]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Spain
 
  • Castile and Leon
    • Salamanca
      • Garcirrey
American Mineralogist 89:110-125 (2004); Encarnación Roda-Robles, Alfonso Pesquera (2007) Locality no. 4: The Phosphates-Rich Cañada Pegmatite (Aldehuela de La Bóveda, Salamanca, Spain) in ALEXANDRE LIMA & ENCARNACIÓN RODA ROBLES ed (2007) GRANITIC PEGMATITES: THE STATE OF THE ART - FIELD TRIP GUIDEBOOK. MEMÓRIAS N. º 9, UNIV. DO PORTO, FACULDADE DE CIÊNCIAS, DEPARTAMENTO DE GEOLOGIA pp 67-72.
  • Catalonia
    • Girona (Gerona)
      • Alt Empordà
        • Cadaqués
Bareche, E. (2005) "Els minerals de Catalunya. Segle XX" Ed. Museu Mollfulleda de Mineralogia - Grup Mineralògic Català, 269 p.
Sweden
 
  • Södermanland
No reference listed
Mineral and/or Locality  
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