2.6" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Rutiodon It has been widely used

It has been widely used in making cement and mortar

and large spoon-shaped teeth

matrix patterns (veining)

These adaptations contributed to their evolutionary success

2.6" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Rutiodon It has been widely usedLocation: Michigan, United States Weight: 1. 9 Ounces Dimensions: 2. 6 Inches Long, 1. 6 Inches Wide, 0. 5 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old Petoskey Stones are unique rocks and fossils, specifically the fossilized rugose coral Hexagonaria percarinata. Typically pebble shaped, these stones are found primarily in the northwestern and northeastern regions of Michigan's Lower Peninsula. They