Your Definitive Guide to Petoskey Stone Michigan’s state stone is prized for its beautiful patterning, which is said to resemble the rays of the rising sun. Take an in-depth look at the famous fossilized coral—including a summary of the fascinating natural history, which began 400 million years ago. Learn all about it, and then head out and search for your own. Get expert advice from author Dan R. Lynch on how to identify and collect Petoskey stones. With tips on where to look and what to look for, along with information about Petoskey lookalikes and other fossils you might find, your rock-hounding trips will be better than ever! Suggestions on what to do with your finds and how much they’re worth add to the knowledge you’ll gain from Petoskey Stone . From Lake Michigan beaches and Petoskey State Park to gravel pits and riverbeds, grab this book and begin your rock-hunting adventure!