Mineral: Staurolite
Locality: Pestsovye Keivy, Keivy Mountains, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
Dimensions: 7.5 x 7.5 x 4 cm / main crystal: 6.6 cm.

Description: Mass: 197 g MIM number:2037 N-shaped twin released from the mica matrix in which it was encased. Photographer: AINU / Augustin de Valence

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