Gemstones of the World by Walter Schumann - 4th Edition Tweezers Widely trusted by jewelers

Widely trusted by jewelers

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Gemstones of the World by Walter Schumann - 4th Edition Tweezers Widely trusted by jewelersBook Overview: Gemstones of the World is truly the single volume that every hobbyist, jeweler, jewelry maker, and rockhound needs: it's the cornerstone of the field. And this updated edition contains a host of new findings on "Gemstones for Collectors," additional gems in the "Table of Constants," and the "double fraction" figures that experts have long wanted a very special new feature. All the gemstones are treated in their many variations: more