Mineral: Carrollite
Locality: Kamoya, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
Dimensions: 1.5 x 1 x 1.5 cm

Description: Mass: 1 g MIM number:1980 Small, perfectly formed spinel-twinned carrollite crystal consisting of two stacked equilateral triangles separated by the classic reentrant angle of the spinel twin; this configuration occurs commonly in diamond crystals. Photographer: AINU / Augustin de Valence

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