[Jewelry making - Article 00331] - Re: [Orchid] Tumbled Copper Discovery

[James Binnion]

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>     Just as a point of information - the rest of the article about
>     plating is true, but neither copper nor silver is a "nobel" metal.
>     I'm assuming they would mean "noble". Gold and the much of the
>     platinum group are noble metals, and that's all. Silver and copper
>     are transition metals, but that's not saying much, in this case. 

    In the electrolytic series the metals are referred to as be more or
    less noble in regards to where they place in the series so therefore
    silver is more noble than iron iron is more noble than zinc etc. Both
    silver and copper are fairly high on the cathodic end of the series
    so they can be referred to as nobel metals. 

Jim

James Binnion
jbin AT mokume-gane.com
James Binnion Metal Arts
http://www.mokume-gane.com
360-756-6550
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