Learn about the incredible world beneath your feet - igneous, metamorphic and sedimentary rocks, precious metals and beautiful crystals. Fascinating facts are accompanied by practical step-by-step projects that show you how to test rocks for hardness, simple soil analysis, make your own fossils, look at erosion, create crystals, and much more. | Find Out About Rocks And Minerals by Jack Challoner, Hardcover | Indigo Chapters