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Re: [Orchid] Copper stain on sterling silver
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Michael Rogers Sunday, November 22, 2009
   
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    It could be an electrolytic plating from the solution in which the
    bracelet was placed. It could be cuprous oxide (fire scale). It could
    be that the bracelet is silver plated over copper. 

    My best advice is to first use a test kit to determine if the
    bracelet is silver, and then to let us know what you have found out.

Good luck.
Michael Rogers


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