Mineral: Sphalerite (variety marmatite)
Locality: Nikolaevski Mine, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Far-Eastern Region, Russia
Dimensions: 15.0 x 8.5 x 9.0 cm

Description: Main crystal size: 6.4 cm Lustrous, black balls on a matrix of galena crystals that look melted and a few quartz needles MIM Number: 331 Photographer: AINU / Augustin de Valence

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