Using coasters under glasses and placing hot items on trivets or pot holders will help to keep your natural stone looking like it did the day it was installed. Many food items and drinks may contain acids that could etch or dull your stone. Countertops should be cleaned with a mild liquid dishwashing detergent and warm water. Do not use any household cleaning products, as this may break down the sealer on granite and may actually damage the surface of marble, limestone, or travertine.
Most of the time, marble and granite can be identified by visible particles at the surface of the stone. Marble has veining, and granite has a flecked or granular appearance. Natural stone is categorized into two general categories according to its composition: Siliceous stone is composed mainly of silica- or quartz-like particles and tends to be very durable and easy to clean. Included in this category are granite, slate, and sandstone. Calcareous stone is composed mainly of calcium carbonate. It is sensitive to acidic cleaning products and frequently requires different cleaning procedures than siliceous stone. These types of stones include marble, travertine, limestone, & onyx.