[Jewelry making - Article 00279] - Re: [Orchid] Oxidation or patination?

[Kevin Whitmore]

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    Hi Sojourner, Cynthia Eid has a great section in her recent article
    about Argentium silver that discusses the correct meanings of the
    words oxide and oxidize.  Basically, jewelers tend to say "oxidize"
    even though this is inaccurate.  When we use an antiquing agent to
    darken silver, a sulfide forms - not an oxide.  Likewise tarnish is
    not an oxide - it is a silver and copper sulfide. 

Best Regards,
Kevin Whitmore
Rio Grande

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