Nepheline from Arusha Region, Tanzania

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Tanzania
Arusha Region Monduli District ⓘ Kerimasi volcano	Martins, T., Chakhmouradian, A.R., and Medici, L. (2014) Perovskite alteration in kimberlites and carbonatites: the role of kassite, CaTi2O4(OH)2. Physics and Chemistry of Minerals, 41, 473–484. Guzmics, T., Mitchell, R. H., Szabó, C., Berkesi, M., Milke, R., & Ratter, K. (2012). Liquid immiscibility between silicate, carbonate and sulfide melts in melt inclusions hosted in co-precipitated minerals from Kerimasi volcano (Tanzania): evolution of carbonated nephelinitic magma. Contributions to Mineralogy and Petrology, 164(1), 101-122
Ngorongoro District ⓘ Ol Doinyo Lengai	Victoria Sekisova, Victor Victorovich Sharygin, A. N. Zaitsev, Stanislav Strekopytov (2015) Liquid Immiscibility Геология и геофизика, 2015, т. 56, № 12, с. 2173—2197 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. Henderson, C. M. B., Kogarko, L. N., & Plant, D. A. (1999). Extreme closed system fractionation of volatile-rich, ultrabasic peralkaline melt inclusions and the occurrence of djerfisherite in the Kugda alkaline complex, Siberia. Mineralogical Magazine, 63(3), 433-438. Dawson, J. B. (1998). Peralkaline nephelinite–natrocarbonatite relationships at Oldoinyo Lengai, Tanzania. Journal of Petrology, 39(11-12), 2077-2094. www.koeln.netsurf.de/~w.steffens/other.htm
ⓘ Olduvai Gorge	Hay, Richard Le Roy (1964), Phillipsite of saline lakes and soils American Mineralogist: 49: 1366-87
ⓘ Sadiman volcano	Zaitseva, E.O. (2012): Mineralogy and geochemistry of the Sadiman volcano, Crater Highlands, northern Tanzania. Eifel-Symposium 2012, "Variability and complexity of minerals and their synthetic analogues of the Vulkaneifel and related provinces”, Christian Albrechts University, Kiel, 23.04. - 30.04.2012. Zaitsev, A. N., Marks, M. A. W., Wenzel, T., Spratt, J., Sharygin, V. V., Strekopytov, S., & Markl, G. (2012). Mineralogy, geochemistry and petrology of the phonolitic to nephelinitic Sadiman volcano, Crater Highlands, Tanzania. Lithos, 152, 66-83. Zaitsev A.N., Wenzel T., Markl G., Spratt J., Petrov S.V., Williams, C.T. (2010) Mineralogy and geochemistry of nephelinites and phonolites from the Sadiman volcano, northern Tanzania. Abstracts of XXVII International conference School «Geochemistry of Alkaline rocks». – Moscow-Koktebel’. pp. 240 pp.