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OverviewExplains 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. Full Product DetailsAuthor: Antionette MatlinsPublisher: Gemstone Press Imprint: Gemstone Press ISBN: 9781683365716ISBN 10: 1683365712 Pages: 26 Publication Date: 17 June 2014 Audience: General/trade , General Format: Hardback Publisher's Status: Active Availability: Temporarily unavailable ![]() The supplier advises that this item is temporarily unavailable. It will be ordered for you and placed on backorder. Once it does come back in stock, we will ship it out to you. Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |