ISBN-13: 9781440237454 / Angielski / Miękka / 2013 / 272 str.
Treasures of the EarthFrom the author of Collecting Rocks, Gems and Minerals and one of the leading agate collectors in the world, comes this comprehensive guide to collecting agates and jaspers, the most sought after types of collectible rocks on the market today. Designed with all beginners in mind, yet filled with valuable technical information for advanced enthusiasts, Collecting Agates and Jaspers helps rockhounds discover these treasures of North America.