Calcite, Dolomite, Gypsum (Var: Selenite)
Shelby Crushed Stone Quarry, Medina, Orleans County, New York, USA
Largest open cavity of Selenite, Calcite and Dolomite found to date at this quarry. Calcite crystals are about 1 inch long, the selenite crystal is about 3 inches long. The other half of the cavity was donated to the NYS museum.
© Donald Lapham