Mineral: Columbite-(Fe) on Albite
Locality: Dara-i-Pech pegmatite, Chapa Dara District, Kunar Province (Konar), Afghanistan
Dimensions: 8 x 6.5 x 8 cm / main crystal: 4 cm

Description: Mass: 355 g MIM number: 2260 Two very well formed and lustrous black crystals on top of a mound of white albite providing an excellent contrast. Photographer: AINU / Augustin de Valence

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