(Fihidiam-baton' iNampona, Bezavona, Kaominina Taolañaro, Faritra Anosy, Faritany Toliary, Madagasikara)
A small quarry for building material.
Grandidierite has here been found in small pegmatic veins less than 5 cm thick embedded in a garnet and cordierite bearing leptynite.
References:
J. Behier (1960): Contribution à la Mineralogie de Madagascar. Ann.Geol.Mad. XXIX, p 40
J.Behier (1963): Carte mineralogique de Madagascar. Archive Serv. Geol.Mad. A 1871