[Jewelry making - Article 00087] - Re: [Orchid] Green and black on new castings

[Stanley Bright]

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Hi Kathy

    Sounds like you had some dirt in your metal. The black stuff is
    probably dirt encased in melted borax flux. If it won't come off on
    the pickle, take your buttons, heat them up and quench them in the
    pickle. That usually gets it off. Basically I think what you have is
    the borax doing its job.. When you go to remelt these make sure you
    give them a good stir with in the crucible so that whatever is left
    over will stick to the sides encased in the borax. By the way.. this
    is what buttons are for. All the junk floats up into them so it's not
    in your castings. 

Stanley Bright
Owner
A&M Jewelers
Baltimore, MD
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