A children's visual reference that explains what rocks and minerals are, how they form, and how they're used, and even highlights record breakers and amazing facts. My Book of Rocks and Minerals is filled with fascinating facts about and amazing images of rocks, minerals, gems, and fossils from the deepest caves to outer space. Features introduce different categories, from crystals to glow-in-the-dark minerals, and illuminating images provide a closer look and show amazing geological formations. Kids can take their fascination even one step further and use the catalog and activity pages to help them collect and group rocks and discover how different rock types fit into the world around them. Colorful and informative, My Book of Rocks and Minerals gives kids the expert knowledge they crave and will have them digging deep to discover all they can about rocks, minerals, gems, and fossils.