Mineral: Cassiterite
Locality: Mount Xuebaoding, Pingwu, Mianyang Prefecture, Sichuan Province, China
Dimensions: 7,0 x 6,5 x 6,5 cm

Description: Main crystal size: 3,8 cm Lustrous, black quadratic crystal and small pale beryls on a matrix made of micro-crystallized cassiterite MIM number 1023 Photographer: Augustin de Valence (Aïnu)

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