The Dorling Kindersley Handbook of Rocks and Minerals is packed with 600 full-colour photographs of more than 500 specimens. Authoritative text clear photographs and a systematic approach help you to cut through the complicated identification process and recognize a specimen easily. Photo-Encyclopedic Approach Each entry combines a precise description with annotated photographs to highlight the rock or mineral's chief characteristics and distinguishing features. Accompanying colour-coded bands provide clear at-a-glance facts for quick reference. In addition each mineral entry features an illustration showing the crystal system to which the mineral belongs. Identification Made Easy Designed for beginners and experienced collectors alike the Dorling Kindersley Handbook of Rocks and Minerals explains what rocks or minerals are how they are classified and how to start a collection. To help in the initial stages of rock identification a clear visual key illustrates the differences between igneous metamorphic and sedimentary rocks then guides the reader to the correct rock entry. A concise glossary provides instant understanding of technical and scientific terms.