Calcite - Spivey Mine, USA - 6.6 cm x 7.9 cm x 10.1 cm.

Mineral: Calcite
Locality: Spivey Mine, Harris Creek Sub-District, Hardin County, Illinois, USA
Dimensions: 6.6 cm x 7.9 cm x 10.1 cm.

Description: Pale honey-colored scalenohedral calcite crystals to 1.9 cm with micro crystals of chalcopyrite coating the calcites.