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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):e17398ce-c57c-4f5b-bc0f-4250ffd412f4
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
com/locate/chemgeo Halogens (F, Cl and Br) at Oldoinyo Lengai volcano (Tanzania): Effects of magmatic differentiation...Natrocarbonatite Halogen fractionation Bromine TXRF Oldoinyo Lengai Leaching a b s t r a c t Halogen abundances of...and their alteration products from Oldoinyo Lengai (Tanzania) are compared to those of associated silicate...alteration. In the associated silicate rocks at Oldoinyo Lengai concentrations of all three halogens increase from...abundances in natrocarbonatites from Oldoinyo Lengai volcano (Tanzania) and the associated silicate rocks in
Journal (article/letter/editorial)
[(Na,K,Cax)2–x(CO3)], known from Ol Doinyo Lengai volcano (Tanzania). A refinement to the IUGS chemical...(<600°C) natrocarbonatitic lavas from Ol Doinyo Lengai, Tanzania that contain 38–40 wt.% combined Na2O...Roberts 1984; Zaitsev et al. 2013); Kerimasi, Tanzania (Hay 1983; Zaitsev 2010; Guzmics et al. 2011);... PARADIS 2010) to very recent (e.g. Ol Doinyo Lengai, Tanzania, which is considered an active volcano)... Carbonatites with mineralogy similar to Ol Doinyo Lengai natrocarbonatite may have been relatively
Journal (article/letter/editorial)
significance of natrocarbonatites at Oldoinyo Lengai, Tanzania: Composition of lavas from 1988 to 2007”☆...Available online 27 August 2012 Keywords: Oldoinyo Lengai Natrocarbonatite Average composition and compositional...Oldoinyo Lengai, Tanzania, are unique in magmatic petrology. The historical activity of Oldoinyo Lengai has...relationship to the silicate magmas of Oldoinyo Lengai. The “type” natrocarbonatite major and trace element...25 samples with low standard deviation. Oldoinyo Lengai carbonatites are unique in almost all aspects of
Journal (article/letter/editorial)
significance of natrocarbonatites at Oldoinyo Lengai, Tanzania: Composition of lavas from 1988 to 2007 J...Available online 1 June 2012 Keywords: Oldoinyo Lengai Natrocarbonatite Average composition and compositional...Oldoinyo Lengai, Tanzania, are unique in magmatic petrology. The historical activity of Oldoinyo Lengai has...relationship to the silicate magmas of Oldoinyo Lengai. The “type” natrocarbonatite major and trace element...25 samples with low standard deviation. Oldoinyo Lengai carbonatites are unique in almost all aspects of
 
Mineral and/or Locality  
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