National Geographic Kids Ultimate Rockopedia: The Most Complete Rocks & Minerals Reference Ever

Where do diamonds come from? What makes gems sparkle? How did Mount Everest and the Grand Canyon form? Find answers to these questions and many more in this rockin' reference book.

Welcome to the amazing world of rocks and minerals! Let's start at the very beginning, with an introduction to the origin of our rocky planet, then move on to explore the world of igneous, sedimentary, and metamorphic rocks. You'll discover how they form, what makes them unique, and most importantly, how to identi...