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Gemstones (Smithsonian Handbooks) by DK discovery Make a battery using aUnearth a treasure trove of knowledge on over 130 gemstones from around the world. Learn how gemstones are formed and how to recognize them by their unique qualities and colors. It's a wonderful book for beginners, students and gemstone enthusiasts that includes the latest scientific research and specimen classification. Handbook of Gemstones is filled with all you need to know about the fascinating world of gemstones cut and uncut stones, organic