[Jewelry making - Article 00950] - [Orchid] Patination 101

[davide zambon]

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Hi everyone,

    first time for me to post here [by the way, I signed myself to
    Orchid for the second time, this time 'cause I'm absolutely focused
    on jewelry things, and I finally signed myself to a five years
    artistic jewelry making and desing course, etcetera. I'm trying to
    stop lurking...] 

    this is my question: while I'm waiting to do built a small lab in my
    basement, I would like to do some experiment in copper and brass
    patination, as for exemple is explained in Claire Sanford's article
    in McCreight "Metal Techniques" book: black on brass [ammonia +
    copper carbonate] and sawdust patina [ammonia, salt, ammonium salt];
    these elements are a bit "hazardous", so I'm asking myself: it's
    possible to use them in patination of wearable jewelry? Are the
    various patinas "stable", once applied, or they tend to poison skin
    and other things at contact, [damaging in the process relations with
    my female friends]? 

    beside of that, there's another thing I haven't understood yet: is
    patina something which can resist the wear/strain of wearing [say,
    colored rings in a chain], or it wears away? 

thanx for any attention,
davide, from italy
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