Quartz (variety chalcedony) - State Route 37 road cuts, Harrodsburg, USA - Larger half is about 15 cm

Mineral: Quartz (variety chalcedony)
Locality: State Route 37 road cuts, Harrodsburg, Clear Creek Township, Monroe County, Indiana, USA
Dimensions: Larger half is about 15 cm

Description: Crystalline quartz on blue microcrystalline quartz (chalcedony) Self collected 2017. Kept under water, except for displays, since collection.