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Vezi pe elefant.ro →Refractometers Made Easy: The ''Right-Way'' Guide to Using Gem Identification Tools, Paperback/Antoinette Matlins
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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.
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