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Niocalite from
Ol Doinyo Lengai, Ngorongoro District, Arusha region, Tanzania


Locality type:Volcano
Classification
Species:Niocalite
Formula:(Ca,Nb)4(Si2O7)(O,OH,F)2
Comments:Occurs in a solid solution with cuspidine.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Cuspidine
Data
Mineral Data:Click here to view Niocalite data
Locality Data:Click here to view Ol Doinyo Lengai, Ngorongoro District, Arusha region, Tanzania
Data Identifiers
Mindat Occurrence Record ID:392945
Long-form Identifier:1:3:392945:2
GUID (UUID V4):0
References
Mitchell, R. H., Belton, F. (2004) Niocalite-cuspidine solid solution and manganoan monticellite from natrocarbonatite, Oldoinyo Lengai, Tanzania. Mineralogical Magazine, 68 (5) 787-799 doi:10.1180/0026461046850219
Mattsson, Hannes B., Reusser, Eric (2010) Mineralogical and geochemical characterization of ashes from an early phase of the explosive September 2007 eruption of Oldoinyo Lengai (Tanzania) Journal of African Earth Sciences, 58 (5) 752-763 doi:10.1016/j.jafrearsci.2010.06.005
 
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