Gemstones of the World - 5th Edition
This is truly the ultimate one-volume (hardcopy) book every hobbyist, jeweler, jewelry maker, and rockhound will ever need.
More than 1,500 full-color photos showcase each precious and semiprecious stone in both its rough natural state and its polished and cut renditions. Each entry offers complete information on a gemstone's formation and structure, physical properties and characteristics, methods of working, cutting, and polishing.
Author: Walter Schumann