Mineral: Calcite
Locality: Bigrigg Mine, Bigrigg, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom
Dimensions: 10,0 x 10,0 x 13,0 cm

Description: Main crystal size: 7,2 cm Perfect, transparent twinned crystal in a heart shape with one very brilliant face, set on a thin brown gangue covered on both sides in small, intact non-twinned calcite crystals MIM number 689 Photographer: Augustin de Valence (Aïnu)

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