Igneous Rocks
What are Igneous Rocks?
Igneous rocks are a type of rocks formed by the cooling and crystallisation of magma, this process can take
anywhere from 1 hour to millions of years. This type of rock usually has a glossy, crystallised effect against the
surface of the rock.
How are they formed?
When a volcano erupts, due to the pressure some of the volcanic magma gets stuck in between little tunnels and caves where magma is stuck. The slow cooling of this magma develops crystals in the hardened magma. After the magma has completely cooled, it is classified as an Igneous Rock
Can Igneous Rocks be formed anywhere else?
Igneous Rocks can also be formed by the cooling of magma on the surface of the Earth or a volcano. However, this method of cooling will not achieve the shiny & glossy finish like slow-cooled Igneous rocks.