(Tsilaizina, Sahatany, Faritra Vakinankaratra, Faritany Antananarivo, Madagasikara)
A complex type LCT pegmatite, known for large tabular crystals of pink beryl, a yellow Mn-rich variety of tourmaline called "tsilaisite". It is situated south of the quartzite Ibity Massif (Mt. Ibity), on the northern side of Mt. Tsilaizina, in the Sahatany Pegmatite Field south of the town Antsirabe in the main highland of Madagascar.
Note: Minerals originating from Antandrokomby (especially rhodizite and small crystals of pigeonblood-red elbaite-schorl etc) has been sold at markets in Sahanivotry and Ansirabe as coming (erronously) from Tsiliazina.
References:
- Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. 624p
- Ranorosoa, N. (1986): Etude mineralogique des pegmatites du champ de la Sahatany, Madagascar. These de Doctorat de l`Universite Paul Sabatier, Toulouse
Mineral List:27 entries listed. 19 valid minerals.
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