Is This an Agate?

A 24 page concise, just-the-facts identification guide to the beach stones along the Lake Superior shore of the Upper Peninsula of Michigan. Illustrated by the author with very realistic paintings and accompanied with maps and clear directions to the public-accessible beaches from Little Girl's Point near Ironwood to Whitefish Point. Nearly 30,000 copies sold since 2001. A must for beachcombers and vacationers coming to the U.P.!