Quartz and Calcite - St. Francisville, USA - 15.2 x 10.0 cm
Mineral: Quartz and Calcite
Locality: St. Francisville, Clark County, Missouri, USA
Dimensions: 15.2 x 10.0 cm

Description: Two attached geodes, one opened, lined with quartz and calcite crystals, collected from the Keokuk Formation in June 1996.