Rocks Minerals Author:Seymour Simon Earth?s crust contains many different kinds of rocks and minerals, such as granite, sandstone, basalt, quartz, and crystal. No matter where you walk, you can find rocks and minerals. They give us clues to what happened millions and millions of years ago in Earth?s history. With fascinating facts and beautiful full-color photographs, award-winnin... more »g science writer Seymour Simon takes young readers into the wonderful world of rocks and minerals.« less