Being hard, like the Lower Coralline Limestone, it is used for concrete making, used much in building industry. Upper Coralline Limestone is used greatly for road maintenance when used as spalls for road surfacing. Upper Coralline Limestone is sometimes polished and used as a marble.
Below: A country road in Northern Malta - rubble walls are made up mostly of upper coralline limestone. While the crushed upper coralline limestone is used for the road.