Melvin Stone quarry Crownover Mill Pickaway Co. Ohio USA
Melvin Stone quarry, Crownover Mill, Pickaway Co., Ohio, USA This is a thumbnail specimen of marcasite from the Melvin Stone Co. Quarry, Williamsport, Pickaway County, Ohio, United States. This specimen was collected by John Medici. According to Carlson (2015, p. 216), these marcasites cover surfaces of iron sulfide nodules.