[Jewelry making - Article 01520] - Re: [Orchid] Agatized dinosaur bones

[leonid surpin]

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>     I can see what the gemology/geology/paleontology experts are
>     saying about the process being wrongly named and can see that the
>     terminology that has been adopted as a generality is not correct. 

    I do not see how such a conclusion can be reached. 

    to be agatized, does not mean to become agate. 

    Without repeating what already have been said about the process, I
    want to mention a chrysocolla as an example. Pure, I am using term
    with some hesitation, chrysocolla does not possess a crystalline
    structure to be of any use as gemstone. But been exposed to elements
    is become agatized, accepted term in this case. Chrysocolla is
    partially replaced by quartz, and that is what gives it structure and
    strength to be used as gemstone. 

    So it would very correct to say that gem chrysocolla is agatized
    chrysocolla, even if in appearance it has nothing to do with agate. 

Leonid Surpin.
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