Limestone is a sedimentary rock primarily composed of calcium carbonate (CaCO₃). It forms from the accumulation of marine organism shells, coral, and algae, or through the evaporation of water in caves and lakes. Known for its versatility, limestone is used in construction, cement production, and as a soil conditioner. It’s also valued for its aesthetic appeal in architecture, offerin... https://artofmarble.com.au/category/limestone