This Mississippian Crowley's Ridge Chert discoidal was found in Clay Co, Arkansas and measures 2.5 inches long and is 1 inch thick at the sidewall. This piece is made from a cobble of Crowley's Ridge Chert from Northeastern Arkansas. This piece is a well made example and is guaranteed to be 100% authentic and unaltered. If you have any questions please feel free to email. Thank You