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Post by Jugglerguy on Feb 9, 2015 21:31:21 GMT -5
No, I was just telling you what rocks might polish well from Lake Michigan. I'm not great at rock identification, so I can't tell you exactly what's in your picture. I see some granite in there, a couple pudding stones (I think), a Petoskey (too soft to tumble), and maybe some quartz. I try a lot of rocks from the beach like that and some tumble well and others don't. It's fun to experiment.
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