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Last summer, I went to Lake Superior and found a few rocks. In this video, I tumble those rocks.
Here’s the recipe I used to tumble these. It’s the same one I use for just about everything.
Rotary tumble using coarse grit, such as 46/70 silicon carbide. Check rocks weekly and set aside any that are acceptable. There is no set time for this. Each rock runs as long as necessary.
Lot-O Tumbler:
2 days with 2 Tablespoons 220 or 120/200 silicon carbide grit
3 days with 1/2 teaspoon 500 aluminum oxide grit and 1 tablespoon borax
2 days with 1/2 teaspoon aluminum oxide polish and 1 tablespoon borax
Optional: burnish for 2 hours or more in 2 tablespoons of borax
Videos showing where I picked these rocks up:
Grand Marais: https://youtu.be/sJid0SyHXMs
Perry’s Landing and Two Hearted River: https://youtu.be/yIp4BWau030
Vermillion Point: https://youtu.be/WSYcLOfekm4
How to Make Stone Crosses: https://youtu.be/dJ7qriOF0r4
Making Petoskey Stone Turtles: https://youtu.be/DIOBskqTRDc
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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!
