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Bookmark or Share- Petoskey stone - WikipediaPetoskey stones are found in the Gravel Point Formation of the Traverse Group. They are fragments of a coral reef that was originally deposited during the Devonian period, approximately 350 million years ago. When dry, the stone resembles ordinary limestone but when wet or polished using lapidary techniques, it reveals the distinctive mottled ...
- Petoskey Stones: Where & How to Find Them | Rock & Gem MagazineAugust 7, 2023. 0. Petoskey stones are a popular Lake Michigan beach find along with beach glass and Yooperlites. To paleontologists, this coral truly does not become a “Petoskey Stone” until someone slices and polishes it (and charges people lots of money for it). Then it becomes a Petoskey Stone.
- What Is A Petoskey Stone? (And The Best Place To Find Them!)How to Identify a Petoskey Stone. Petoskey stone specimens range in size from pebbles just a few inches long to large stones weighing up to 1,000 pounds. There is even one specimen estimated to weigh a ton. This behemoth can be found nestled beneath a sign at Sleeping Bear National Seashore about 90 miles south of Little Traverse Bay.
- Petoskey Stones | Rock & Gem MagazineStory by Bill Vossler. At 350 million years of age, Petoskey stones are older than the dinosaurs, which roamed the earth beginning 165 million years ago. Like dinosaurs, Petoskey stones are rocks and fossils ( The Complete Guide to Petoskey Stones, Bruce Mueller and William H. Wilde, 2004).
- 15 Places to Find Petoskey Stones in Michigan: Rock-Hunting ...Michigan’s state stone, the Petoskey stone (and its lesser-known cousin, the Charlevoix stone), are favored unique treasures for beach-goers on the Great Lakes. Wander just about any shore of Lake Michigan in the spring and summer and you’re bound to find rock hounds, eyes down and scouring the beach, trying to find a Petoskey Stone.
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