Granite is a kind of igneous rock, found on Earth but nowhere else in the Solar System.It is formed from hot, molten magma. Its colour ranges from pink to grey, according to the proportions of its minerals.
The magma is forced between other layers of rock by the pressure under the Earth’s surface. The magma cools and turns slowly into solid stone. Granite has many different types of minerals in it. These include quartz, feldspar, hornblende, and sometimes mica. As the magma cools, these minerals form crystals. The crystals can be seen easily if the granite is cut and polished.Granite is the best-known igneous rock. Many people recognize granite because it is the most common igneous rock found at Earth’s surface and because granite is used to make many objects that we encounter in daily life.