Chervetite, Francevilleite: Mounana mine, Mounana, Haut-Ogooue Province, Gabon

Description

Species: Chervetite, Francevilleite

Locality: Mounana mine, Mounana, Haut-Ogooue Province, Gabon

Size: 3.3 x 3 x 2.3 cm. (68 grams)

Ex. Jack Nieburger collection

Nice specimen of these two very rare uranium-vanadium species from their type locality at the Mounana mine in Gabon. Rare material likely collected in the 1960’s. Rare!!