[Jewelry making - Article 00054] - Re: [Orchid] Polishing Lapis

[coralnut]

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    Interestingly, I have faceted lapis and polished it with Linde A on
    wood.....maple is a bit too dense...I have a custom made teak wheel
    I use. Haven't done it for a number of years though. 

    The Sinkankas reference simply says 'leather' but does not specify
    what kind!! My experience says hard cow leather about 1/4" thick does
    the very best job. I also have another teak wheel with grooves and
    get good polish on cabs with that, though size of the stone and
    groove limits its use. Make your speed about 4-600rpm if possible.
    Lapis is not like jade which likes about 800rpm. Don't use too much
    pressure as lapis lazuli can fracture ( again unlike jade which loves
    pressure and heat during polishing). 

    Cheers from Don at The Charles Belle Studio in SOFL where simple
    elegance IS fine jewelry!
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