Calcite - Minerva I Mine, USA - 7.9 x 8.3 cm
Mineral: Calcite
Locality: Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
Dimensions: 7.9 x 8.3 cm

Description: Honey-colored acicular scalenohedral calcite crystals with associated with a wedge of blue fluorite.