Granite is classified as an igneous rock and is formed by the crystallisation of magma, or lava, as it cools and solidifies in the Earth’s crust.
Granite predominantly consists of the following minerals: quartz, mica, feldspar and plagioclase feldspar.
The proportion and type of each mineral give granite its unique appearance. Different conditions and mineral ingredients at individual quarry sites mean that each area produces a unique pattern and colour of stone.