There is three main types of rocks in the lithosphere. There is Igneous rocks; they are formed from cooling molten magma, the most common rocks of this type are granite and basalt. There is Sedimentary rocks; they are made from deposits of eroded particals of rock and soil and the remains of dead orgainisms, which have fallen to the bottom of sea and lakes. Common rocks of this type are limestone, mudstone and sandstone. The last main type of rock is Metamorphic rocks, they are created by Ingenous and Sedimentary rocks which have been changed by heat, pressure and chemical change within the earths crust. Common rocks of this type are slate, marble, quarts and schists.