[Jewelry making - Article 00544] - Re: [Orchid] Faceting, solutions to match RI

[Karen Lechner]

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Hi Noel,

    There is a liquid called Italdo Refractol. My label has Bob-A-Lou
    Rock in Saginaw MI as manufacturer(?). Perhaps Kingley North or
    Graves might have it. It has a refractive index 1.567 and the label
    advises that it is odorless and nontoxic. I bought mine in a
    lapidary store that sold faceting rough. The Gemmologists"
    Compendium by Robert Webster has a comprehensive list of different
    chemicals and their refractive indexes on pages 134-135.  No info on
    how nasty they may be to work with but when you see bromo as part of
    a name it is not usually a good sign! 

<edit>

    Gemmologists' Compendium
    By Robert Webster, E. Alan Jobbins

    http://www.ganoksin.com/jewelry-books/us/product/0442238851.htm
    Price: $14.95

    Media: Hardcover
    Manufacturer : Van Nostrand Reinhold
    Release data : 01 January, 1981

</edit>

HTH,
Karen

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