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 Post subject: Tarnish on moonstone beads
PostPosted: Tue Mar 19, 2013 5:47 pm 
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Hi,
I am repairing a clients moonstone bead necklace. The moonstones have "tarnish" from the beading wire in the drill holes. I have tried warm soapy water, which didn't work. Any suggestions?
Thanks so much.


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 Post subject: Re: Tarnish on moonstone beads
PostPosted: Tue Mar 19, 2013 5:53 pm 
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To begin with, Rachel, we have moved your post out of the section entitled "Forum Disclaimers"
Please be more careful when choosing where to post.

To answer your question, I would try a Sunshine Cloth for the areas around the drill holes.
One needs an abrasive with a hardness greater than the metal and softer than the feldspar.
To remove tarnish within the drill holes, I suspect you would need to get inside every drill hole with an abrasive....a reamer of sorts.

Does anyone have any ideas about a "dip" which might work?


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 Post subject: Re: Tarnish on moonstone beads
PostPosted: Thu Apr 04, 2013 12:25 am 
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Thanks Barbara, I had very good success with a diamond bit reammer. it was not quite thin enough to reach the very centre of the beads but it was a huge improvement!


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 Post subject: Re: Tarnish on moonstone beads
PostPosted: Thu Jul 30, 2015 4:07 pm 
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Probably a bit late now, but I have had great success with a bamboo slip (which will split down really fine) then charge it with toothpaste or other mild abrasive and use the flex drive to spin it inside the hole. A run through the ultrasonic then cleans everything out. When restringing the necklace, use the nylon coated wire. A little more expensive but doesn't mark the inside of beads.


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