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Oxycalciomicrolite

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About OxycalciomicroliteHide

Formula:
Ca2Ta2O6O
A possible new species. Analyses published (Christy & Atencio 2013).


Classification of OxycalciomicroliteHide

Pending publication
Notes:
Pending approval

Chemical Properties of OxycalciomicroliteHide

Formula:
Ca2Ta2O6O

Relationship of Oxycalciomicrolite to other SpeciesHide

Other Members of this group:
Fluorcalciomicrolite(Ca,Na)2(Ta,Nb)2O6FIso. m3m (4/m 3 2/m) : Fd3m
Fluornatromicrolite(Na1.5Bi0.5)Ta2O6FIso. m3m (4/m 3 2/m) : Fd3m
Hydrokenomicrolite(◻,H2O)2Ta2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m)
Hydromicrolite(H2O,◻)2Ta2(O,OH)6(H2O)
HydroxycalciomicroliteCa1.5Ta2O6(OH)Iso. 4 3 2 : P42 3 2
Hydroxykenomicrolite(◻,Na,Sb3+)2Ta2O6(OH)Iso.
Hydroxynatromicrolite(Na,Bi3+,◻)2Ta2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
Kenoplumbomicrolite(Pb,◻)2Ta2O6(◻,OH,O)Iso.
OxystannomicroliteSn2Ta2O6O
Oxystibiomicrolite(Sb3+,Ca)2Ta2O6O
Yttromicrolite (of Hogarth)(Ca,Y3+,U,Na)2-x(Ta,Nb,Ti,Fe3+)2O7Iso. m3m (4/m 3 2/m) : Fd3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
4 photos of Oxycalciomicrolite associated with Tantalite-(Mn)Mn2+Ta2O6

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 OxycalciomicroliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Černý, P., Chapman, R., Ferreira, K., and S.-A. Smeds (2004) Geochemistry of oxide minerals of Nb, Ta, Sn, and Sb in the Varuträsk granitic pegmatite, Sweden: The case of an "anomalous" columbite-tantalite trend. American Mineralogist: 89: 505-518 [as "stibiomicrolite"].
Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., and Kartashov, P.M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist: 48: 673-698.
Williams, P.A., Hatert, F., Pasero, M., and Mills, S.J. (2013) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 18. New minerals and nomenclature modifications approved in 2013. Mineralogical Magazine: 77: 3249-3258.
Christy, A.G. and Atencio, D. (2013) Clarification of status of species in the pyrochlore supergroup. Mineralogical Magazine: 77: 13-20.

Internet Links for OxycalciomicroliteHide

Localities for OxycalciomicroliteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
Brazil
 
  • Minas Gerais
    • Governador Valadares
Andrade, Marcelo Barbosa de (2007) Estudo cristaloquímico de minerais do grupo do pirocloro no Brasil. Tese de Doutorado Instituto de Geociências. São Paulo, 2007, p. 175
Italy
 
  • Lombardy
    • Lecco Province
      • Colico
        • Piona Peninsula
Vignola, P., Fransolet, A.M., Guastoni, A. & Appiani, R. (2011). Le pegmatiti di Piona. Recenti studi sui filoni Malpensata, Luna e Sommafiume. Rivista Mineralogica Italiana, 1/2011, 30-38
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Ossola Valley
        • Vigezzo Valley
          • Druogno
            • Orcesco
Guastoni A., Diella V., Pezzotta, F. (2008): Vigezzite and associated oxides of Nb–Ta from emerald-bearing pegmatites of the Vigezzo valley, Western Alps, Italy. Canadian Mineralogist: 46: 619-633.; Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., Kartashov, P.M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist: 48: 673-698.
Sweden
 
  • Västerbotten County
    • Skellefteå
      • Skellefte mining district
Černý, P., Chapman,R., Ferreira,K. and S.-A. Smeds (2004): Geochemistry of oxide minerals of Nb, Ta, Sn, and Sb in the Varuträsk granitic pegmatite, Sweden: The case of an "anomalous" columbite-tantalite trend. American Mineralogist: 89: 505-518; Atencio, D., Andrade, M.B., Christy, A.G., Gieré, R., Kartashov, P.M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist: 48: 673-698
 
Mineral and/or Locality  
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