[Jewelry making - Article 01226] - Re: [Orchid] Identifying metals

[Jerry in Kodiak]

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>          I assume that if you tested an intact piece of gold-filled
>     wire, it would also remain creamy-colored, although its interior
>     could be another matter. 

    No, if you place a drop of the acid on gold filled wire, you will
    get the same reaction you get on a piece of solid gold wire, since
    the surface is in fact gold. A drop on the cut end however will
    produce a reaction appropriate to the composition of the base metal.
    It would probably fizz green, since the base metal most probably
    contains copper. 

Jerry in Kodiak

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