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Fossilized Petoskey Stone

Like holding an ancient coral reef in the palm of your hand! This fossilized calcite Rugose (hexagonaria) coral lived during the Devonian Period approx. 360 million years ago. Often called a "Petoskey" stone, it is actually the state stone of Michigan. Named after an Ottawa Indian Chief, Chief Pet-O-Sega, most Petoskey stones are rounded and formed as a result of the fossilized coral bedrock being picked up and naturally tumbled by glaciers. Larger pieces like this can still be found at some locations throughout Michigan where the ancient coral fossils are preserved in stunning detail. 

This piece has been cut and polished with a clear coat lacquer applied to preserve the stone. The front displays a beautiful cross-section of this variety of colonial coral, with the back left in the raw and natural condition. You can even see in great detail where the soft-bodied coral polyps would have been living out of the individual spaces.

It has a flat-cut base with a cork liner on the bottom to protect from surface scratches and is self-standing.

Approx. 8" L x 4" H x 1.25" Deep


Fossil Care

Want to know more about caring for your fossils? Learn more here

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