Andilamena, Alaotra-Mangoro, Madagascar

The district is located north of Alaotra Lake between the Tsaratanana district and the east coast of Madagascar. Good gem beryl was collected at a Beryl-Columbite Subtype pegmatite. NYF-Miarolitic Class pegmatite produced medium to large crystals of clear, partially corroded topaz.

Ref: Madagascar, extraLapis English No.1, 2001, p. 46

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Madagascar
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