[Jewelry making - Article 00119] - Re: [Orchid] Times and temps for heat treating gems?

[Mark H]

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Hi;

    I don't think you can achieve any results with your klin. In most
    cases heat treatment is not only a matter of the temperature but
    also the composition of the atmosphere, ie. the presence of certain
    gases will ensure color enchantment. also, different rough sources
    will yield different results. if you have some semiprecious stones
    it wont justify the investment, and if you have huge precious
    stones, it wont justify the risk of destroying it. forget it i
    say.... 

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