Refractometers Made Easy - Antoinette Matlins - 图书 - Gemstone Press - 9781683365716 - 2014年6月17日
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Refractometers Made Easy


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Explains in non-technical terms how to use the refractometer to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the refractometer.

介质类型 图书     Hardcover Book   (精装硬皮书)
已发行 2014年6月17日
ISBN13 9781683365716
出版商 Gemstone Press
页数 26
商品尺寸 150 × 220 × 20 mm   ·   182 g   (预估重量)
语言 英语  

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