Marble is porous and can stain. It can be cleaned with a mild soap and warm water, rinsed with clean water, and wiped with a clean soft cloth to insure no residue remains. If needed, repeat the process with white vinegar. Regularly polish your marble with a good non-yellowing paste wax. Never use abrasive cleaners. Food and liquid stains should be blotted immediately with a damp, soft cloth. Protect your marble against rings caused by beverages by using coasters. Variations in color, texture, geological veins and voids occur naturally as marble is created. These variations are not quality defects.