[Jewelry making - Article 00694] - Re: [Orchid] Yellow Film on Argentium Sterling Silver

[Wayne Emery]

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>     Um, isn't it the other way around? Copper (in sterling) oxidizes,
>     fine silver taernishes primarily in response to sulphur.

    While copper oxidizes more readily than Fine silver, the
    sulfidization rate is considerably greater for copper (Sterling) than
    Fine. Place some Sterling and some Fine in a brown paper bag for 2
    days, and you'll see the results of sulfidization....not oxidation.
    Fine silver oxidizes readily, albeit slowly.

Wayne

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