[Jewelry making - Article 01468] - [Orchid] Best nomenclature for Mexican Opal

[kirk stephan]

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    For many years there's not been a well-accepted terminology for the
    clear Mexican opal material. The Mexicans used to call it 'water
    opal' and then 'crystal opal'. I confuse about half of my clients
    calling it one or the other. 'Any ideas from the group on what the
    best nomenclature would be? I have quite a supply, including the
    'Fire opal', which also causes confusion to some since both types
    are VERY scarce anymore, with most mines having been shut down for
    several years. "Fire opal' actually is an orange-to-red colored base
    and, if high quality, also has the green/red/blue 'fire' of natural
    opal material. See some photos on my site to get the idea, 

kirk
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