Add Yahoo as a preferred source to see more of our stories on Google. PETOSKEY — On June 28, 1965, Gov. George Romney signed a bill naming the Petoskey stone as Michigan's official state stone. This ...
Petoskey and Charlevoix stones are both fossilized coral from the Devonian Age, found in Michigan. Petoskey stones have a larger, more symmetrical hexagonal pattern than Charlevoix stones. Rock ...
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