When magma cools down slowly below the Earth's surface, it forms intrusive igneous rocks. These rocks have a coarse-grained texture, meaning you can see the individual minerals with the naked eye. It's like a big geological puzzle, with each mineral fitting together to create a unique rock.
On the other hand, when magma cools down quickly above the Earth's surface, it forms extrusive igneous rocks. These rocks have a fine-grained texture, meaning the minerals are all mixed together in a tiny, intricate pattern. It's like a microscopic game of Tetris, with each mineral fitting together perfectly.
But that's not all - we also have pyroclastic rocks, which are formed when magma is ejected into the air as ash or pumice. These rocks are like the rebels of the geological world, formed in a burst of energy and violence. They're often found near volcanic areas, where the Earth's surface is still simmering with heat.
