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Optical Properties of Gemstones - Gemology

http://www.bwsmigel.info/Lesson4/DE.Optical.Properties.html
Category: Sports Shoes  
GEOLOGY 115. OPTICAL PROPERITES OF GEMS. Optical properties are those which are related to the behavior of light, on, or in, a gemstone. Some of these can be seen, and even quantified, with the naked eye alone. Three such characteristics are: luster, transparency, and color. The study

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