Petoskey Stone

Home Igneous Sedimentary Metamorphic Rock Cycle Petoskey Stone Petoskey Stone This interesting stone is a variety of Calcite and was formed by the fossilization of the coral, Hexagonaria. Petoskey Stones are found on many beaches of Lake Michigan and Lake Huron as well as in rock quarries from Traverse City to Alpena. The honeycomb pattered…