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Magniotriplite

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Big Photo

Karasu granite pegmatite, Turkestan Range, Osh Oblast, Kyrgyzstan
© Maurice de Graaf




Formula:
(Mg,Fe
2+
 
,Mn
2+
 
)
 
2
PO
 
4
F
System:MonoclinicColour:Reddish-brown.
Lustre:VitreousHardness: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

IMA status:Discredited 2003
Dana 8th edition ID:41.6.1.3

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
Hey's CIM Ref.: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

Lustre: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°
Maximum Birefringence:δ = 0.020

Chart 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,Fe
2+
 
,Mn
2+
 
)
 
2
PO
 
4
F
Essential elements:F, Mg, O, P
All elements listed in formula:F, Fe, Mg, Mn, O, P

Relationship of Magniotriplite to other Species

Related Minerals - Hey's Index Grouping:

- +
22.1.1Amblygonite
LiAl(PO
 
4
)F
22.1.2Lacroixite
NaAl(PO
 
4
)F
22.1.3Natrophosphate
Na
 
7
(PO
 
4
)
 
2
F · 19H
 
2
O
22.1.5Nacaphite
Na
 
2
Ca(PO
 
4
)F
22.1.6Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F
22.1.7Nefedovite
Na
 
5
Ca
 
4
(PO
 
4
)
 
4
F
22.1.9Fluorapatite
Ca
 
5
(PO
 
4
)
 
3
F
22.1.10Herderite
CaBePO
 
4
(F,OH)
22.1.11Isokite
CaMg(PO
 
4
)F
22.1.12Panasqueiraite
CaMg(PO
 
4
)(OH,F)
22.1.13Babefphite
BaBePO
 
4
(F,OH)
22.1.14Fluellite
Al
 
2
(PO
 
4
)(OH)F
 
2
 · 7H
 
2
O
22.1.15Minyulite
KAl
 
2
(PO
 
4
)
 
2
(OH,F) · 4H
 
2
O
22.1.16Morinite
NaCa
 
2
Al
 
2
(PO
 
4
)
 
2
(OH)F
 
4
 · 2H
 
2
O
22.1.17Bøggildite
Na
 
2
Sr
 
2
Al
 
2
PO
 
4
F
 
9
22.1.18Fluorstrophite
SrCaSr
 
3
(PO
 
4
)
 
3
F
22.1.19Viitaniemiite
Na(Ca,Mn
2+
 
)Al(PO
 
4
)(F,OH)
 
3
22.1.20Väyrynenite
Mn
2+
 
Be(PO
 
4
)(OH,F)
22.1.21Maxwellite
NaFe
3+
 
(AsO
 
4
)F
22.1.22Wagnerite
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)F
22.1.23Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
22.1.25Zwieselite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)F
22.1.26Mcauslanite
HFe
2+
3
Al
 
2
(PO
 
4
)
 
4
F · 18H
 
2
O
22.1.27Richellite
CaFe
3+
2
(PO
 
4
)
 
2
(OH,F)
 
2
22.1.28Svabite
Ca
 
5
(AsO
 
4
)
 
3
F
22.1.29Tilasite
CaMg(AsO
 
4
)F
22.1.30Johnbaumite-M
Ca
 
5
(AsO
 
4
)
 
3
OH
22.1.31Durangite
NaAl(AsO
 
4
)F

Other Names for Magniotriplite

Synonyms:
IMA2003-CMagnesiotriplite
Other Languages:
German:Magniotriplit
Russian:Магниотриплит
Spanish:Magniotriplita

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 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

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    • Localities for Magniotriplite

    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.
    Hide Locality List
    (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.
    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
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