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CrystalClearSpeaks
1/3/2009 8:53 PM UTC
Thank you for your comment, Aquamarina. I emailed your question to Tyb and will post his response when it arrives. Your interest is much appreciated, and I thank you on behalf of anyone else who silently held the same question. :-)
Aquamarina
1/3/2009 8:08 AM UTC
Can Tyb give us a quick example of single and double refractive gems?
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