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Five tips for finding and polishing Petoskey stones, fossilized ancient coral found on the beaches in the shallows of Lake Michigan along the Northern Michigan coast.

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no - these aren't rocks that have been tangled (see Zentangle), they are Petoskey stones ~ a coral that lived 350 million years ago

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Petoskey Stones, the state stone of Michigan, are fossilized coral resulting from glaciation and are often polished to reveal the beautiful pattern of the 6 sided coral colonies. #Geology #Petoskey_Stone #Michigan

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WORLDS LARGEST PETOSKEY STONE DISPLAY Using petoskey stone and fossil, a framed two-dimensional display with a square shape that measures approximately ni

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Petoskey Stones are the fossilized remains of a coral that grew in Michigan 350 million years ago. Petoskey means "rays of rising sun" in Indian. This stone is found nowhere else in the world.

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