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Gregoryite from
Mt Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania

Locality type:Mountain
Classification
Species:Gregoryite
Formula:(Na2,K2,Ca)CO3
Confirmation
Validity:Valid - Type Locality
References
References:Lithos 13 (1980), 213; American Mineralogist, 66, pp. 879 (1981); Mineralogical Magazine 1997 61 : 779-789; Zaitsev, A. N., & Keller, J. (2006). Mineralogical and chemical transformation of Oldoinyo Lengai natrocarbonatites, Tanzania. Lithos, 91(1), 191-207.; Mitchell, R. H. (1997). Carbonate-carbonate immiscibility, neighborite and potassium iron sulphide in Oldoinyo Lengai natrocarbonatite. Mineralogical Magazine, 61(6), 779-789.; Mattsson, H. B., & Reusser, E. (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.; Victoria Sekisova, Victor Victorovich Sharygin, A. N. Zaitsev, Stanislav Strekopytov (2015) Liquid Immiscibility Геология и геофизика, 2015, т. 56, № 12, с. 2173—2197
Associated Minerals Based on Photo Data:
Nyerereite5 photos of Gregoryite associated with Nyerereite at this locality.
Data
Mineral Data:Click here to view Gregoryite data
Locality Data:Click here to view Mt Oldoinyo Lengai (Ol Doinyo Lengai), Arusha Region, Tanzania
Mineral and/or Locality  
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