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Iankaroka phlogopite deposit, Ianabinda Commune, Betroka District, Anosy Region (Fort Dauphin Region), Tuléar Province (Toliara), Madagascar

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Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 23° South , 45° East (est.)
Margin of Error:~29km
Köppen climate type:Cfa : Humid subtropical climate
Name(s) in local language(s):Karieran' Iankaroka, Kaominin' Ianabinda, Distrikan'i Betroka, Faritra Anosy, Faritanin'i Toliary, Madagasikara

A phlogopite-bearing pyroxenite mined for phlogopite mica. Located 20 km S of the town of Betroka. The pyroxenite vein cross the RN 13 (PK 136). It is 35 m wide and can be followed for 500-600 m.
Besaire (1966) gives these map coordinates: X = 301,7 and Y = 354,5. (Map sheet Betroka et Est Benenitra).
In the old mines a sapphirine-bearing anatectic Al-Mg granulite occurs (Razakamanana et al. 2006)

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4 valid minerals.

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Besairie, H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive. 34, p. 313.
Razakamanana, T., Ackermand, D. and Windley, B. F. (2006 ): Metamorphic evolution of sapphirine-bearing rocks from Vohidava area, Southern Madagascar: Structural and tectonic implication. Proceedings of the German-Malagasy Research Cooperation in Life and Earth Sciences edited by C Schwitzer, S Brandt et al. p 41-60

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