Give your geologist and rock-hound kids something new to study! Featuring lots of National Geographic images of both locations and close-ups of rocks and minerals, you'll be right where all the crystalizing action is! Learn how rocks are used as resources, where in world they come from, how they're formed in the first place, the rock cycle, how to tell different crystals apart, the Mohs scale, fossils, and where to find the largest crystals on earth! 64 full-color pages with index and interactive glossary quiz.
Please Note: This book references 'billions of years.'