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 ...

Rock collectors in northern Michigan often find what they believe are Petoskey stones, only to later find out they are the lesser known Charlevoix stones — which can leave some disappointed that they ...

Memories of a childhood in Michigan for some are often inextricably linked to hiking trips up the Sleeping Bear Dunes or to lazy beach days along the sparkling Great Lakes. And with those memories ...

From the Leland Blue, a stone-like slag leftover from the iron ore and mining industry, to the glowing Yooperlite and Lake Superior agates found in the Upper Peninsula, Michigan is home to plenty of ...

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 ...