Natural stone, such as granite or marble, is extracted from quarries all over the world. The stone is then cut into slabs and polished to smooth out its naturally rough exterior. From the quarries, the slabs are then shipped to local distributors, who then sell the stone to fabricators. Because of the sheer nature of these slabs, the thickness, color, and quality are not always consistent, and no two slabs are alike. Some natural stones have mineral inclusions, knots, internal cracks, or slight pits, all of which are considered part of the natural beauty of the stone. Because these types of stones are porous in nature, they are susceptible to staining, and routine maintenance is required to decrease the likelihood of this (see below).

• Sealing natural stone is recommended to be done every 6 months to a year, depending on the type and color of the stone. Sealing your stone countertops, however, does not make the stone stainproof, but rather more stain resistant. Natural stone sealers can be purchased at your local box store.  
• Cleaners - clean stone surfaces with a neutral cleaner, stone soap, or a mild liquid dishwashing detergent and warm water. These products are available at your local box store. An excessive concentration of cleaner or soap may leave a film and cause streaks. Follow manufacturer recommendations.
•  Soap scum - to remove soap scum, use a non-acidic soap scum remover or a solution of ammonia and water
•  Coasters - use coasters under all glasses, particularly those containing alcohol or citrus juices.
• Trivets - while many stones can withstand heat, the use of trivets or mats is recommended.
• Liquid spills - blot the spill with a paper towel immediately. Do not wipe the area, as it can spread the spill. Flush the area with water and mild soap and rinse several times. Dry the area thoroughly with a soft cloth and repeat as necessary.
• Oil stains - an oil-based stain will darken the stone and may need to be chemically dissolved so the source of the stain can be flushed or rinsed away.
• Metal stains - metal stains must be removed with a poultice. Deep-seated, rusty stains are extremely difficult to remove and the stone may be permanently stained.