2015 - Gems Crystals From One of the Worlds Great Collections (Hardcover) ISBN-13: 9781454917113 ISBN-10: 1454917113 Genres: Sports & Outdoors, Science & Math ? 1991 - Gems and Crystals From the American Museum of Natural History [Rocks, Minerals and Gemstones] (Hardcover) ISBN-13: 9780671687045 ISBN-10: 0671687042 Genres: Science & Math, Outdoors & Nature ? Gems Crystals/minerals [OMNIBUS EDITION] (Hardcover) ISBN-13: 9780684818405 ISBN-10: 068481840X Genres: Science & Math, Outdoors & Nature ? |