[Jewelry making - Article 00467] - Re: [Orchid] Jewelry Friendly Gold Alloys?

[Noel Yovovich]

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>     Purple gold is the intermetallic compound AuAl2. Most alloys are
>     not chemical compounds they are mixtures of two or more
>     elements... 

    Jim, your explanation was so eloquent and interesting, I read it to
    my husband (a smart guy who is just interested in things, not a
    metalsmith or anything of the sort). He asked me to forward it to
    him, but he also asked what the difference is between the ordering
    of the intermetallic and the crystal structure of a diamond. This is
    all way over my poor head, so I pass the question on to you! 

Noel
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