Millerite and Calcite on Quartz (variety chalcedony) - State Route 37 road cuts, Harrodsburg, USA - Geode is 7 cm. The millerite spray is 4cm
Mineral: Millerite and Calcite on Quartz (variety chalcedony)
Locality: State Route 37 road cuts, Harrodsburg, Clear Creek Township, Monroe County, Indiana, USA
Dimensions: Geode is 7 cm. The millerite spray is 4cm