A quality uv ore black light lamp is needed to show the colors the best. All About Yooperlites Rock hounds love Michigan’s shores – and for good reason, thanks to Yooperlites and Petoskey Stones. From the bottom of the Great Lakes, unique and special rocks are picked up with the current and dropped off on the shore for us to find. Among the many beautiful gem and mineral deposits or rocks in Michigan’s beaches, such as Petoskey Stones and Charlevoix Stones to Lake Superior Agates, the Yooperlite glow stone is one of the most unique. The shores of our Great Lakes provide a pure Michigan treasure trove of rocks for any collector. It will be sent by insured and registered mail.