[Jewelry making - Article 00954] - Re: [Orchid] Red Emerald

[wemery AT earthlink.net]

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    This is nonsense. What "sub-group"?  Minerals are not classified by
    the presence or absence of inclusions.  The classical definition of
    emerald is the medium to dark green variety of beryl.  Lighter shades
    are properly termed green beryl. The re has been acceptance of the
    African vanadium-containing beryls in the "emerald" classification
    along with the chromium- scontaining beryls. 

    Sapphire includes all color varieties of corundum except strong red,
    which is properly called ruby. Please explain to us how true emerald
    and red beryl are in the "same sub-group".  Maybe I was asleep while
    getting my MS in Mineralogy, but there ARE rules of nomenclature
    when referring to minerals and varieties, and red beryl is NOT
    emerald , regardles of how many times the illiterati call it so. 

Wayne Emery


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