What is the Lithosphere Made of?

The lithosphere is the Earth’s outermost layer. It consists of the Earth’s crust and the top portion of the mantle just beneath the crust. The crust is made up of igneous, sedimentary and metamorphic rocks of every size, shape and mineral composition. The upper portion of the mantle contains magma. When magma is released through volcanoes in the Earth’s crust, it is called lava.