What Are Crystals? (Let's Rock!) Paperback – August 15, 2011

My goal is to collect all the books in this series. I thinks these are some of the most comprehensive books on rocks and crystals that I have seen. This book is organized into sections on crystal formations, types of crystals, and many other important aspects of crystal informations. The only thing I would have liked to see in this book are more drawing pictures of crystal's elemental shapes.