[Jewelry making - Article 00463] - Re: [Orchid] Inlay 24k gold into black onyx

[David L. Huffman]

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    Hi Kathy; I'm going to take a shot at this, but expect better
    informed answers from the others.  The "channel" could be cut with an
    ultrasonic cutting system, whereby a die is sunk slowly down into the
    stone as it cuts it's way with ultrasonic vibration.  (sound
    plausible?).  Diamond bits could also be used to carve the cavity. 
    As long as the walls went straight down, you wouldn't need much
    undercut, as the rough texture of the cut stone would give enough
    "tooth" to hold the metal in.  To inlay the gold, you would aquire
    24 karat gold leaf and by packing it down into the cavity, it would
    actually weld itself into solid material (I've heard dentists used to
    fill teeth that way).  An alternative would be to make up a mercury
    amalgam with gold, and although I actually know how to do that, I
    don't think you'll want to go that route. 

David L. Huffman
David L. Huffman Studios, Inc. in Central NY where we've got ours and
everybody else's snow.

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