Eyewitness Rocks & Minerals" is an informative guide to the world beneath our feet. In this updated and revised version igneous, sedimentary and metamorphic rocks as well as hundreds of sparkling minerals are covered in detail on where and how they form; as well as explaining characteristics such as hardness, color and luster. Text and photographs examine the creation, importance, erosion, mining, and uses of rocks, minerals and precious metals in this updated version of this best-selling title. For over 25 years, DK's "Eyewitness" books have been the most trusted nonfiction series in classrooms, libraries, and homes around the world. In summer 2014 this award-winning series will get a fresh new look both inside and out. The introduction of paperback editions, eye-catching jackets, and updated interiors ensure that the "Eyewitness" series will continue to be relevant in the ever-changing world of education and remain the go-to source for homework help, research projects, reluctant readers, ESL students, and, as always, to satisfy the minds of curious kids. Supports the Common Core State Standards.