This revised and expanded guide is a rockhound's must-have resourceEasy to use and lavishly illustrated, this edition of Collecting Rocks, Gems, and Minerals serves as an introduction for beginners while also including valuable technical information for seasoned collectors. This guide takes you from novice to knowledgeable enthusiast in no time and features:• An easy-to-use, quick reference format arranged by category and color of stone• 800+ beautiful color photographs• Values and tips for locating, buying and collecting• Both lapidary and mineral display materials• Decades of rock-collecting know-how from the authorIncludes a foreword by Johann Zenz, world-renowned agate expert, author and lecturer.