The perfect companion to any study of Earth Science, Basher#x19;s best-selling Rocks and Minerals: A Gem of a Book! is now available as a card deck. The rocks and minerals are grouped into families, and each is presented with key facts and metrics such as hardness, color, origin, and components. Basher#x19;s iconic character-driven artwork gives each rock or mineral a friendly face to go with all the scientific detail. These cards make a handy study aid, quiz tool, or rock-hunting companion.