[Jewelry making - Article 00457] - Re: [Orchid] Nicked gem polishing

[Don Rogers]

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    David, alumina (linde A) makes a much better polish for garnets. 
    You can get mylar charged disk in both 6" and 8" sizes from most of
    the faceting machine suppliers. You could eaisly cut the disk down
    to flex shaft sizes.  One manufacture is Crystalite.   These depend
    on a smooth surface though, and will be very slow if effective at
    all for surfaces with scratches larger than those imparted by
    600grit paper.  If you have a nick, sand it out first, then attack
    the sanded area with the polish.  The finer the "pre-polish", the
    quicker the polish will develop.  While this sounds like a lot of
    additional work, it is actually faster than trying to polish out a
    deep scratch or a nick, and a lot less likely to damage the stone
    due to overheating. 

Don 

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