error
off to a rocking start
Member since November 2008
Posts: 16
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Post by error on Nov 12, 2008 11:46:49 GMT -5
you know how they do it at the mint, right? They have the disks in a spinning vat of small metal balls. Maybe I can take some old coins that have lost their luster and put them in with some zinc or steel BBs for a day or two.
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chassroc
Cave Dweller 
Rocks are abundant when you have rocktumblinghobby pals
Member since January 2005
Posts: 3,586
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Post by chassroc on Nov 12, 2008 12:13:30 GMT -5
When you shine silver or brass in a tumbler full of bbs you add water with dish detergent, take 1/2 hour or less
csroc
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nansaidh
spending too much on rocks
Jewelry artist, graphic designer, dog lover, car nut (etc.)
Member since August 2008
Posts: 311
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Post by nansaidh on Nov 12, 2008 13:50:42 GMT -5
That's what I originally got my Lortone for - polishing silver. I use stainless steel mixed shot (with pins), a tiny squirt of Dawn and water to cover the shot & silver. Works beautifully and work-hardens the silver, too.
Nancy
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Post by Bikerrandy on Nov 12, 2008 16:17:46 GMT -5
How old? Don't attempt this with coins of any value, they're worth more if you leave them "as is".
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Post by Hard Rock Cafe on Nov 12, 2008 16:35:06 GMT -5
I second Bikerrandy's response. Collectible coins drop in value pretty significantly if you clean them.
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