This is an igneous rock. Igneous rocks are one of the three rock types. An igneous rock is formed through the cooling and solidification of magma or lava.
The Grand Canyon. The Grand Canyon is a sedimentary rock which is one of the three rock types. Sedimentary rocks are formed when water flows carrying the particles, the sediment is usually formed when weathering and erosion break down a rock into loose material.
This is a metamorphic rock. Metamorphic rocks come from the movement of a preexisting rock. This rock type can include marble, slate, schist, gneiss and more.
This is an obsidian rock, obsidian rocks are a type of igneous rock. Obsidian is a natural volcanic glass.