Hand Sample from Albert V. Carozzi collection Description: Chert nodules with nucleus and crust Age: Pleistocene Locality: Glacial Drift, Weldon Springs, Illinois Heading Info: W: Ward and Co. Sed. Rock Collection Commercial
Summary
Hand Sample from Albert V. Carozzi collection Description: Chert nodules with nucleus and crust Age: Pleistocene Locality: Glacial Drift, Weldon Springs, Illinois Heading Info: W: Ward and Co. Sed. Rock Collection Commercial