What type of rock is granite?

Granite is an igneous rock comprised primarily of quartz and feldspar. It is lightly-colored with a coarse texture and is considered an intrusive rock due to its formation underground.

Granite is formed by the cooling and solidification of magma below the Earth's surface, which allows for the growth of the quartz and feldspar crystals it contains. It is the counterpart of the extrusive igneous rock known as rhyolite. The minerals in granite may be pink, white or gray, depending on their chemical composition. Granite is a highly dense and hard material and is used in many applications including construction and engineering due to its strength.