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Granite
7-30 usd/kg
Granite is an igneous rock (formed from magma) consisting mainly of silica (SiO2), feldspar and other minerals. It is quarried, cut into slabs and polished for use as worktops (countertops) and architectural surfaces.
Sustainability concerns
Non-renewable ingredients
Raw material generates polluting by-products
Low circularity potential
Granite is familiar as a mottled white, rose and grey ornamental stone. The appearance is graded, but as a natural material, no two pieces will be exactly the same. The inclusion of different minerals affects the colour and pattern, as well as mechanical properties. Feldspar is often pink, and so granite dominated by this mineral will appear mottled pink, for example. It is used as a worktop, countertop, kitchen counter and architectural solid surface material indoors and out.
So called ‘black granite’ is gabbro, a type of igneous rock, but that has cooled more slowly. It has different mechanical properties and is only available in dark-grey and black.
