Mama2Twins
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- Joined
- Dec 7, 2009
- Messages
- 1,543
I'm having trouble finding info on this. I see a lot of tumblers used for coins. I have a lot of mystery finds that seem to be iron. Can I put them into my vibratory tumbler with aquarium gravel? If so, how much gravel, what else should I use besides water? Thank you.
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