[Jewelry making - Article 00560] - Re: [Orchid] Faceting, solutions to match RI

[Roger Dery]

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Hi Noel,

>       I have read about the use of solutions that match the RI of
>     stone to reveal the internal condition of the rough. What I want to
>     know is, are there things I can use that I would have around, or do
>     I need to buy special substances for this purpose? 

    There is a substance used by cutters called: "Refractol". It is
    odorless, non-toxic and has a Refractive Index of 1.567 - which is
    very close to Beryl - such as the Aqua you are working with. Using
    Refractol, you should be able to clearly view into most gem rough
    that has a low-to-mid RI range. In addition, you may find it helpful
    to use a low-intensity light, back lit of the rough you are viewing. 

    When I need to use Refractol, I generally wear the same pair of
    latex style gloves. This helps to keep my hands clean and to not
    transfer substances from one item to another. Then, you will need to
    clean the rough thoroughly with denatured alcohol or your favorite
    de-greaser/cleanser prior to dopping. 

Roger Dery
gemdigital AT hotmail.com
Spectral Gems, Inc.
Rare Gemstones - Exceptional Faceting - Genuine Colored Stones

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