Mineral: Calcite
Locality: Xianghuapu Mine, Xianghualing Sn-polymetallic ore field, Linwu, Chenzhou Prefecture, Hunan Province, China
Dimensions: 12,0 x 7,5 x 7,5 cm

Description: Main crystal size: 6,7 cm Group of hexagonal white calcite crystals of lenticular form with a twin formed from two such crystals MIM number 1241 Photographer: Augustin de Valence (Aïnu)

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