Pocket Eyewitness Get fast facts at your fingertips with this "DK Pocket Eyewitness Rocks and Minerals", packed with bite-sized chunks of information that will encourage and inform even the most reluctant readers. From igneous, sedimentary and metamorphic rocks as well as hundreds of sparkling minerals, this pocket guide covers vital data on where and how they form; as well as explaining characteristics such as hardness, colour and lustre. With 160 pages of amazing encyclopedic stats and genius gem facts to provide extra wow. This mine of information will help you learn how to identify rocks and minerals in no time.