Mineral: Uraninite
Locality: Swamp No. 1 Quarry, Topsham, Sagadahoc County, Maine, USA
Dimensions: 2,5 x 2,5 x 1,5 cm

Description: Main crystal size: 2,4 cm Lustrous, black cubo-octahedron with a sharp-edged upper portion and contacted bottom MIM number 996 Photographer: Augustin de Valence (Aïnu)

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