The following is a handout that describes all three rock types in detail. Also within the writing are descriptions of the most common types of rocks for each rock type. Igneous rock descriptions include both intrusive and extrusive rocks. For the sedimentary rocks there are descriptions of different types of rock falling under the classifications of clastic, precipitates, and biogenic rock samples. Finally, there the metamorphic rocks talk describe the change with heat and temperatures for pelites and also describes other foliated and non-foliated rocks. This is essentially a booklet for rock identification.