[Jewelry making - Article 00258] - Re: [Orchid] Coloring 18k yellow gold

[Joe Chott]

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    Hi David 

>     Two: it seems when I dump a hot article in the acid, it works on
>     some areas better than others, 

    You may be right here.  The thicker areas will hold the heat longer
    so that the effect is somewhat varied.  This is easily observed when
    using a weak liver of sulfur solution to develop patinas on silver. 

Pam Chott
Song of the Phoenix


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