This guidebook is for anyone who has walked along a Lake Superior beach, picked up a stone, and wondered, "What is this?" Bruce Mueller and Kevin Gauthier researched Lake Superior's entire shoreline to create this thorough and accessible volume. With great detail and helpful illustrations, they describe the kind of rocks you'll find including copper, iron, and goldùprovide hints for telling the stones apart, and show you the best places to find each stone. Also included are suggestions for handling the stones, including the best polishing methods, and fascinating information on the rocks' origins. A section of color photographs is included to help with identification.

Bruce Mueller is owner of the C&M Rock Shop in Honor, Michigan. He holds a master's in geology from the University of Illinois. He is also the author of The Complete Guide to Petoskey Stones.

Kevin Gauthier is a graduate of Michigan State University and has completed courses through the Gem Institute of America (GIA). He is the owner of Korner Gem in Traverse City, Michigan.