[Jewelry making - Article 00840] - Re: [Orchid] Green amethyst - what is it, really?

[robertplowejr]

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>     Green Amethyst is Prasiolite or heated amethyst that turns green
>     instead of turning to citrine as does most heated amethyst.. Quite
>     a bit of it is coming out of Brasil at the moment. 

    Prasiolite 

    From Wikipedia, the free encyclopedia 

    Prasiolite or vermarine is a green-colored form of quartz, usually
    produced by artificially heat-treating amethyst. Since 1950, almost
    all has come from one small mine in Brazil. Natural prasiolite has
    also been obeserved in Lower Silesia in Poland.[1] The gem has a
    refractive index of about1.54-1.553 

Best Regards,
Robert P. Lowe Jr.
Lowe Associates - Brasil
Gemstones, Rough, Specimens
e-mail: robertplowejr AT juno.com

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