[Jewelry making - Article 00107] - Re: [Orchid] Polishing up oyster shells

[John Donivan]

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>     We did this years ago with those purple fragments of the clam
>     shell lip that you find on the beach. 

    I didn't get into this in the beginning as it's a perennial thread.
    In a nutshell, though - all shells are essentially the same, not
    matter what shape, size or name they have. They are all nacre, which
    is a natural calcium carbonate, and they all polish easily after
    grinding and sanding with simple tools. Tripoli and zam will do a
    fine job, after sanding. There's no real difference between oyster
    shells and cone shells and mother of pearl. The exception is abalone,
    which is known to have especially toxic dust, but even IT is still
    nacre in essence. 

http://www.donivanandmaggiora.com
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