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<p>[QUOTE=&quot;desertgem, post: 24553962, member: 15199&quot;]The light green color indicates a good chance it is silver(1)carbonate. It would be touchy and have to be monitored to not go beyond (longer) minimum treatment. Dilute Nitric acid soak, removing and repeating with maybe a little help. I use a very sharp point wood skewer that has had the end soaked in water for flexibility for stubborn areas. An expert can tell tell, but it will appear much better. You only need a very small amount of nitric acid&nbsp; ( add it to water , not reverse). There will be some trial and error since its hard to tell the depth of damage. Good Luck , Jim[/QUOTE]</p><p><br /></p>

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