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Although many people will tell you that it’s impossible to tumble Petoskey stones, the first two stages are actually easy to do. After that, you can hand sand them pretty quickly.

The Petoskey stone is a 360,000,000 year old coral fossil called hexagonaria. It is the state stone of Michigan.

If you don’t have a tumbler or a Dremel, you can do the whole process manually: https://youtu.be/sjImNrwR9As

I buy most of my lapidary supplies from The Rock Shed. I don’t make money from your purchases there, but I really think they have the best prices and the best service, so I feel good recommending them. https://rockshed.com

I also have an Amazon storefront. This is where you can find other products you may have seen in my videos. As an Amazon Associate I earn from qualifying purchases.
https://www.amazon.com/shop/michiganrocks

On Michigan Rocks you can join me on relaxing rock hunts in picturesque Michigan. I’ll also show you how to polish rocks and teach you other lapidary techniques. New videos are posted every Tuesday and Friday. Subscribe now so you don’t miss any upcoming videos!

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