Andriamena Commune, Tsaratanàna District, Betsiboka, Madagascar
The Andriamena district is located south of the Tsaratanana pegmatite fields. The Beryl-Columbite Subtype pegmatites produce an abundance of good gem specimens of beryl in association with crystals of columbite, garnet, euxenite, xenotime and fergusonite.Ref: Madagascar, extraLapis English No.1, 2001, p. 43