Delaware County, Oklahoma, United States, North America
Accession Date:
30 Aug 2012
Collection Date:
1970 to 1990
Notes:
OC-4 (Ordovician Cotter, Variety 4): OC Variety 4. Delaware Co., OK. This medium and dark gray banded stone is oolitic, with darker oolites in light areas and lighter dolites, surrounded by dark rings, in darker areas. The texture is medium and fracture often is smooth. Workability is often good to very good. A fairly rare variety.