Download or read book What Are Crystals? written by Molly Aloian and published by Let's Rock!. This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crystals are made up of minerals hardened into distinct shapes with regular repeating patterns. This informative book takes a look at the underground process that creates crystals, from sparkling quartz to ordinary salt, as well as where they are found and how they are mined.