This document describes different types of igneous, sedimentary, and metamorphic rocks. It provides descriptions, characteristics, and examples of common intrusive and extrusive igneous rocks including granite, syenite, diorite, gabbro, and basalt. Examples of sedimentary rocks discussed are sandstone, limestone, shale, conglomerate, and breccia. Metamorphic rocks summarized include quartzite, marble, slate, gneiss, and schist.