A very hard, granular, crystalline, igneous rock consisting of quartz, mica, and feldspar is often used for flooring, outside building fascia, counter tops, showers, bar tops, fireplaces and walls. Most lighter colored granites are porous and should be sealed. Because granite is extremely hard, dense and resistant to scratches and acid etching, we often use granite for floors in commercial buildings and for our counter/bar tops at home and in restaurants. Hundreds of varieties of granite exist. The pigment of granite which consists of spots of color surrounded by bands of other colors, can be light colored and dark colored, or have small and large coarse grains running throughout the stone. The colors are typically uniform throughout the stone.