(Departementa Betafo, Faritra Vakinankaratra, Faritany Antananarivo, Madagasikara)
Ref.: Pezzotta, F. and Franchi, M. (1997) Miarolitic shallow depth pegmatites of the Betafo and Antsirabe areas, central Madagascar: genetic inferences. In: International Symposium on Geology and Mineral Resources of madagascar (Antananarivo), Program Abstracts Volume.