Calcite on Quartz - , USA - the geode is about 24 cm and the calcites are up to 2.5 cm
Mineral: Calcite on Quartz
Locality: Washington County, Indiana, USA
Dimensions: the geode is about 24 cm and the calcites are up to 2.5 cm

Description: Rocky wooded ravine on private land Washington County , Indiana U.S.A. Collected 2015 . This picture was taken as part of my recent display case at the 2016 Cincinnati Ohio mineral show