I found this object in my garden next to an arrowhead. It is 2 inches long, slightly curved, and the point is shaped like a chisel. It feels like there is a thumb pad on one side & a groove where an index finger lay on the other side. The exposed 'reddish brown' spot on one end appears to be the same material the arrowhead is made of. Could this be a flake tool or core worked into a chisel or scraper? Or weird rock? It fits perfectly between thumb & index finger. I have included pic of arrowhead I found beside it.