[Jewelry making - Article 00832] - Re: [Orchid] Jade ring durability?

[John Burgess]

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    G'day'; In New Zealand every jeweller's shop carries jade rings, and
    they aren't expensive. Not even the apple green nephrite, translucent
    jade. Jade is so tough and strong that the old Maori carvers used
    jade to make the most complicated carvings from local timber and I
    have witnessed shavings coming from an experienced carver's jade
    chisel that were identical to those produced by steel chisels. Not
    only was it hard enough to take a fine edge, but tough enough that it
    did not chip. I have worked jade, but it needs diamond tools, or
    weeks of laborious rubbing on sandstone which Maoris used to make
    jade artifacts.-- 

Cheers for now,
JohnB of NZ
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