Download or read book Refractometers Made Easy written by Antoinette Matlins and published by Turner Publishing Company. This book was released on 2013-03-07 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.