[Jewelry making - Article 00175] - Re: [Orchid] [4Sale] Chatham Emeralds

[Wayne Emery]

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Elaine,

    Again....naturally occurring zirconium oxide in the form of
    baddelyite crystallizes in the monoclinic system. 

    The CZ we use is a calcium-stabilized form of zirconium oxide that
    crystallizes in the isometric system. Since the two do NOT share the
    same crystal system, they do not share "essentially the same optical
    and crystallographic properties", and therefore the synthetic CZ
    does not exist. They are similar, but NOT the same. There is no
    natural counterpart of calcium-stabilized zirconium oxide. 

Wayne
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