Descriptive Mineralogy of Pugh Quarry, Northwestern Ohio: Calcite, Dolomite and Fluorite
Parr, David F.; Chang, Luke L. Y. (1979-01)
Calcite is by far the most abundant mineral in the Devonian rocks at Pugh Quarry. The large crystals, from 5 mm to 10-15 cm long, are predominantly brown with wide variations in hue and intensity. The small crystals, smaller ...