[Jewelry making - Article 00400] - Re: [Orchid] Ultrasonic cleaning after stone setting

[Daniel R. Spirer]

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    I'm just going to throw this out there on this topic. While with
    customer's stones I ALWAYS err on the side of caution, I have to say
    that when they were stones that belonged to me, I have put every
    single one mentioned in all of these posts into both the ultrasonic
    and steam cleaner and nothing has ever happened to any of them. This
    includes opals (thousands), tanzanite (some), emerald (maybe
    thousands) and a host of other rare, bizarre and fragile material.
    Never have I had one come out in a different condition than it was
    when it went in. Would I leave an opal/emerald/tanzanite in the
    ultrasonic for hours? No, but to run them for a minute or two to get
    some of the heavier gunk off has never been a problem. This doesn't
    mean it can't happen, just that in my experience, the odds are
    actually on your side, not the ultrasonic's. But would I do this with
    the customer's $50,000 emerald? Not on your life. Toothbrush and
    ivory liquid (not toothpaste which is often abrasive) is about it
    then. 

Daniel R. Spirer, G.G.
Daniel R. Spirer Jewelers, LLC
1780 Massachusetts Ave.
Cambridge, MA 02140
www.spirerjewelers.com
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