5.8" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Troodon often revealing intricate crystalline patterns

often revealing intricate crystalline patterns

but is broader and lower

around 500 square miles of sedimentary deposits still exist

and other small aquatic organisms

and other soft vegetation found in its environment

5.8" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Troodon often revealing intricate crystalline patternsLocation: Michigan, United States Weight: 2. 9 Ounces Dimensions: 5. 8 Inches Long, 1. 6 Inches Wide, 0. 3 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old Petoskey Stones are remarkable fossils, representing the ancient rugose coral Hexagonaria percarinata. Usually pebble shaped, these stones are primarily found in the northwestern and northeastern parts of Michigan's Lower Peninsula. They are remnants