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It appears in a wide range of colors
enabling movement and defensive curling
The formation of ruby in zoisite is a result of metamorphic processes
Name: Gryposaurus
3.4" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Petoskey It appears in a wideLocation: Michigan, United States Weight: 2. 1 Ounces Dimensions: 3. 4 Inches Long, 2. 6 Inches Wide, 0. 5 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old This remarkable specimen represents Hexagonaria percarinata, an ancient rugose coral preserved as stone and Michigan's official state fossil. Originating from a thriving reef system during the Devonian epoch, roughly 350 million years ago, the Petoskey
