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Ships within 48 hours · Estimated delivery Oct 29 - Nov 3
With a hardness of 7 to 7
The formation of ruby in zoisite is a result of metamorphic processes
As a bipedal herbivore
including deltas
a member of the Quartz family
3.4" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Petoskey With a hardness of 7Location: 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
