Geology, An Introduction to Familiar Rocks, Minerals, Gemstones & Fossils, is a must-have reference guide for beginners and experts alike. With this indispensable guide, learn how to identify common species of North American rocks, gems, minerals and fossils. Maps show the distribution of familiar rocks and minerals across North America. Also, included are helpful tips on how to begin, where to look, tools and methods. The Pocket Naturalist series is an introduction to common plants and animals and natural phenomena. Each pocket-sized, folding guide highlights up to 150 species and most feature a map identifying prominent sanctuaries and outstanding natural attractions. Each is laminated for durability. (31/2 X 81/4 folded, opens to 22 X 81/4, color illustrations, maps)