Granite is an igneous rock that is commonly and widely used for kitchen and bathroom countertops and remodeling. Depending on the chemistry of the stone and the minerals it is made of, it can range in colors from pink to gray. Each piece of is unique because of the variations in the composition of the granite. This stone is very durable and beautiful, making it a popular choice for the home. The addition of granite surfaces, such as has been known to significantly raise the value of your home.