[Jewelry making - Article 00109] - Re: [Orchid] Design and synthetic stones

[The Doctor]

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>         I wonder, do other forms of "ivory," such as narwhal or walrus
>     tusks, have the same structure? 

    Basically yes, but not precisely. Even elephants from different
    regions may have significant differences in the exact composition of
    both the organic and/or mineral components of their ivory. Among
    different species such as whale, walrus, etc, experts (of which I am
    not one) can usually tell the difference by sight. 

    Elephant ivory's physical structure usually displays a visual
    phenomenon named the "engine turning effect" that is usually the
    giveaway for identification. It looks really cool, too. 

James in SoFl

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