Granite is a tough, durable rock, but it needs to be taken care of to ensure a prolonged life.
Do not mix cleaning products such as ammonia and bleach together - the result is toxic.
Ask a professional to remove or repair a scratch in granite.
Use coasters under all glasses, particularly those containing alcohol or citrus juices. Many common foods and drinks contain acids that will etch or dull the stone surface.
Do not place hot items directly on the stone surface. Use trivets or mats under hot dishes and place mats under china, ceramics, silver or other objects that could scratch the surface.
Do not use products that contain lemon, vinegar or other acids on marble or limestone. Strong detergents or corrosive liquids can dull the polished marble/granite surface and should not be used.
Don't use abrasive cleaners such as dry cleansers, scouring powders, or 'soft' cleansers