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<p>[QUOTE=&quot;evelyb30, post: 393510, member: 36&quot;]In the jewelry trade we&#039;d call that oxidation &quot;the greenies&quot;.&nbsp; In this case it looks like &quot;old green&quot; i.e. inactive and not likely to do further damage.&nbsp; It won&#039;t hurt the piece to leave it alone if need be.&nbsp; If you want to get it off, I&#039;d try ketchup.&nbsp; It&#039;s what you use on brass when there are rhinestones present.&nbsp; Dunking brass in vinegar will get rid of the greenies, but it puts paid to rhinestones.&nbsp; So... get some ketchup; those packet thingies from a fast food place will work fine if nothing else.&nbsp; Smear a good layer onto the green areas, let sit for a few hours, and wipe off with a damp cloth. The green ought to come with it.&nbsp; If not, you haven&#039;t lost anything but some fast food ketchup.[/QUOTE]</p><p><br /></p>

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