Stone marble, travertine, granite, limestone, and cement
Stone are very delicate and must be cleaned with neutral, gentle cleaners. Acids, even the mild acid in vinegar, will dissolve the finish and permanently etch the surface. Some stones are very porous and therefore, may absorb liquid spills. If liquid spills do occur, wipe it dry as soon as possible by blotting dry with a clean cloth. The best method for cleaning Stone is to wet a clean cloth with lukewarm water to wipe the surface, and to remove any marks. You can use a very mild detergent to remove any tricky stains, but try and limit to once every few months. Do not place glasses directly on Stone, and always use a dry cloth to dry and shine the Stone to prevent liquids from getting into the Stone core.