Kitchen renovations provide the perfect opportunity to start afresh with a beautiful natural stone benchtop. Two natural materials that are commonly used are granite and marble. Granite Benchtops Granite creates a robust kitchen countertop. Being an igneous rock, it has emerged over long periods through the cooling and solidification of lava or magma. Granite is primarily comprised of quartz, feldspar and mica, plus other minerals. The colour of a particular slab varies according to the minerals present within.