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Betafite Group

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Big Photo

Oxyuranobetafite
Luna 24 landing site, Mare Crisium, The Moon
© Pavel M. Kartashov

Show Betafite Group Photos (4)



Formula:
A
 
2
(Ti,Nb)
 
2
O
 
6
Z
A is primarily Ca or U4+ but can also be Na, Sn2+, Sr, Pb2+, Sb3+, Y, H2O or ◻.

Z is primarily O, but can also be OH, F, H2O or ◻
Member of:Pyrochlore Supergroup


The nomenclature was recently revised by Atencio et al. (2010).

Classification of Betafite Group

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Chemical Properties of Betafite Group

Formula:
A
 
2
(Ti,Nb)
 
2
O
 
6
Z


A is primarily Ca or U4+ but can also be Na, Sn2+, Sr, Pb2+, Sb3+, Y, H2O or ◻.

Z is primarily O, but can also be OH, F, H2O or ◻

Relationship of Betafite Group to other Species

Member of:Pyrochlore Supergroup
Other Members of Group:

- +
Group Members:
Oxycalciobetafite
Ca
 
2
(Ti,Nb)
 
2
O
 
6
O
Oxyuranobetafite
(U,Ca,◻)
 
2
(Ti,Nb)
 
2
O
 
6
O

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 Betafite Group

Reference List:

- +
Lumpkin, G.R. and Ewing, R.C. (1996) Geochemical alteration of pyrochlore group minerals: Betafite subgroup. American Mineralogist: 81: 1237-1248.

Atencio D., Andrade M.B., Christy A.G., Giere R., Kartashov P.M. (2010): The pyrochlore supergroup of minerals: nomenclature. Canadian Mineralogist, 48, 569-594.

Internet Links for Betafite Group

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    • Localities for Betafite Group

    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.
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    (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.
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Šumperk (Mährisch Schönberg)
          • Maršíkov (Marchendorf)
    		Chládek,Š.:Mineralogická charakteristika pegmatitu na Lysé hoře u Maršíkova v Hrubém Jeseníku. Bakalářská práce,Univerzita Palackého Olomouc,2011,s.1-44.
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Dzierżoniów District
        • Piława Górna
    		PIECZKA et al. 2010: Nb-Ta minerals in pegmatites in the DSS mine at Piława Górna, Góry Sowie Block, southwestern Poland. Mineralogia - Special Papers, 37.
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Hinterrhein Valley
        • Ferrera Valley
          • Ausserferrera
    		[Oxycalciobetafite] Brugger J., Giere R. (1999) As, Sb, Be and Ce enrichment in minerals from metamorphosed Fe-Mn deposit, Val Ferrera, Eastern Swiss Alps, - Can. Miner., 37, pp.37-52.
    The Moon
    [Oxycalciobetafite] Meyer C., Yang S.V. (1988) Tungsten-bearing yiitobetafite in lunar granophyre, - Am. Miner., 73, pp.1420-1425; Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., Kartashov, P.M. (2010): The pyrochlore supergroup of minerals: nomenclature. Canadian Mineralogist, v.48, pp. 673-698.
    • Mare Crisium
    		[Oxyuranobetafite] Mokhov, A.V., Kartashov, P.M., Bogatikov, O.A., e.a. (2008) Fluorite, hatchettolite, calcium sulfate, and bastnasite-(Ce) in the lunar regolith from Mare Crisium. Doklady Earth Sciences, 422(1), 1178-1180, Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., Kartashov, P.M. (2010): The pyrochlore supergroup of minerals: nomenclature. Canadian Mineralogist, 48, 673-698.
    USA
     
    • Michigan
      • Marquette Co.
        • Republic
    		Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10.
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