FLOORING APPLICATIONS Dust interior floors frequently using a clean, dry dust mop. Sand, dirt and grit do the most damage to natural stone surfaces due to their abrasiveness. Mats or area rugs inside and outside an entrance will help to minimize the sand, dirt and grit that will scratch the stone floor. Be sure that the underside of the mat or rug is a non-slip surface. Do not use vacuum cleaners that are worn -- the metal or plastic attachments or the wheels may scratch the