4.8" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Chiastolite where the segments were fused

where the segments were fused into a single shield-like structure

The first fossils of Thescelosaurus began to be recovered in the closing decade of the nineteenth century

Jasper is not translucent unless cut extremely thin

and distinctive crystal forms

Yellow Fluorite is a calcium-based mineral

4.8" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Chiastolite where the segments were fusedLocation: Michigan, United States Weight: 3. 3 Ounces Dimensions: 4. 8 Inches Long, 2. 3 Inches Wide, 0. 4 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old Petoskey Stone is a unique rock and fossil, specifically a fossilized rugose coral known as Hexagonaria percarinata. These stones are typically pebble shaped and are found primarily in the northwestern and northeastern regions of Michigan's Lower