Petoskey Stones
Petoskey stones are fossilized coral fragments of an ancient coral reef deposited during the Devonian periods of over 400 mya. The stones have a distinctly mottled six-sided pattern often resembling a patch work quilt. Petoskey stones are found along the shores, gravel pits and roads of northeastern Lake Michigan typically from Traverse City to the Upper Peninsula. In 1965 the stone was adopted as the state stone of Michigan. The detail of these beautiful stones is remarkable.
Rocks collected and photograph taken at Torch Lake Nature Preserve, Michigan.
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Geophilia Photography 
Somehow they’re making me so emotional I can hardly see to type – what a story our planet can tell 🙂
thank you for your kind words. And I do love to tell the earth’s story in photos
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These are really beautiful. I can imagine them polished up and gracing my sideboard 🙂
Thank you
I would like them polished myself. even wetting them makes the patterns stand out more. i should take another photo of them