Bas Maevarano Pegmatite Field, Sofia, Madagascar
Pegmatite district characterized by Beryl-Columbite Subtype pegmatites. In the past the locality produced industrial beryl and later produced blue-green, gem beryl
Bas Maevarano is located west of the town of Antsohihy. Maevarano is the name of a nearby river.
Ref: Madagascar, extraLapis English No.1, 2001, p. 42