What is the difference in the compostition of granite and marble?
Natural stone can be classified into two general categories according to its composition: siliceous stone and calcareous stone. Knowing the difference is critical when selecting cleaning products. Siliceous stone is composed mainly of silica or quartz-like particles. It tends to be very durable and relatively easy to clean with mild acidic cleaning solutions. Types of siliceous stone include granite, slate, sandstone, quartzite, brownstone, and bluestone. Calcareous stone is composed mainly of calcium carbonate. It is sensitive to acidic cleaning products and frequently requires different cleaning procedures than siliceous stone. Types of calcareous stone include marble, travertine, limestone, and onyx. What may work on siliceous stone may not be suitable on calcareous surfaces.
