[Jewelry making - Article 00033] - Re: [Orchid] Soldering with diamonds in place

[Beth Rosengard]

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>     Diamonds can burn if heated in presence of oxygen, that is why
>     they need boric acid coating 

    I've been soldering with (small) diamonds in place for years --
    without using a boric acid coating -- and never had a problem.
    However, I always clean the diamonds thoroughly before soldering. I
    thought it was the combination of dirt and heat which caused a
    diamond to burn, not oxygen and heat. In fact, I'd guess that the
    reason Helen's diamond burned is because it was dirty. 

    So what's the bottom line here? 

Beth
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