Download or read book Geo the Geode written by William G. Hosford and published by . This book was released on 2006-01-01 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geo the geode explains that a rock's appearance depends on the number of crystals and kinds of minerals it contains, and describes how geodes such as he are formed. Features text at two reading levels.