Explanation:
Igneous rocks are one of the types of rocks that we have. They are usually formed by the cooling and solidification of magma.
We magma cools, they begin to crystallize minerals from within them and these are the minerals that forms the eventual rock when all is set.
- Intrusive igneous rocks forms deep within the subsurface and are typified by their large crystals.
- Extrusive igneous rocks forms on the surface and are typified by very fine grains.
- Hypabyssal rocks are intermediate.
