(Ambatofotsikely, Kaominina Fidirana, Distrikan' i Betafo, Faritra Vakinankaratra, Faritany Antananarivo, Madagasikara)
A granite LCT pegmatite, Beryll-Columbite subtype. It is situated ca 55 km NE of the town Betafo, and 20 km NE of Mandoto.
References:
- Lacroix, A. (1922): Minéralogie de Madagascar. Tome 2. Minéralogie appliquée, lithologie. Augustin Challamel (Éditeur), Paris. p. 278-279.
- Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
- Besairie H. (1966): Les Gites Minéraux de Madagascar. Annales Géologiques de Madagascar, Tananarive. 34, p. 390
- Tarantino, S. C, Zema M. (2005): Mixing and ordering behavior in manganocolumbite-ferrocolumbite solid solution: A single-crystal X-ray diffraction study. American Mineralogist 90: 1291-1300. [sample of Columbite-(Fe) from Ambatofotsikely used in this study]
Mineral List:19 entries listed. 11 valid minerals.
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