Burin three sided blade. Material: stone. Size: 1/4" W. x 1 1/8" L. Description: natural stone; three sided blade; point at end.
Burin used by Native Americans. Dr. Schirmer of Minnesota State University, Mankato visited 2 July 2013 and determined that this is a Native American tool. A burin was a tool flaked into a chisel point for inscribing or grooving bone, stone, wood, leather or antler.