[Jewelry making - Article 00137] - Re: [Orchid] Ruby Vs. Garnet

[RING14K]

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    Get some polarized glasses and cut the lenses in half, orient the
    filter, you can also buy polarized filters at any pawn shop camera
    section. Then place the filters so one is 180 degrees opposed to the
    other. As You turn two filters they will cut the light, at that
    point they are 180 degrees opposed then mark and cut, place this in
    between your stone and a light source, garnets will show red and
    yellow at that point rubies do not. 

Ringman


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