Granite stone is an igneous stone made up of primarily quartz, micas, and a mixture of additional trace minerals. These minerals give granite the numerous colors and textures we see in granite countertops. Granites can be predominantly white, pink, or gray in color, depending on their mineralogy. The word granite comes from the Latin granum, a grain, in reference to the coarse-grained structure of such a completely crystalline stone. granite is an igneous stone with between 20% and 60% quartz by volume, and at least 35% of the total feldspar consisting of alkali feldspar. People have been using granite for many years. It is used as a construction material, an architectural stone, a decorative stone, and it has also been used to manufacture a wide variety of products. Granite is used in buildings, bridges, monuments, and many other projects. Indoors, polished granite slabs and tiles are used in tile floors, stair treads and many other design elements. Granite tiles can be used to create a beautiful and durable workplace. Granite paving stones can make an interesting way of paving. The natural beauty of stone combined with expert design can produce a unique result. In the past granite were often used to pave streets. However, asphalt have replaced most of this work because of lower material costs. Granite is the stone used as a grave marker in the many countries. Granite also has very high stability. Stone sellers have different criteria for granite. Granite is a strong stone because its mineral grains have grown tightly together during a very slow cooling period. Additionally, the quartz and feldspar that compose it are harder than steel. This makes granite desirable for ornamental purposes, such as gravestones and monuments. Granite has good color and is resistant to weathering and acid rain. Geology students divide granite into four sections: I-type (igneous) granites appear to arise from the melting of igneous stone, S-type (sedimentary) granites from melted sedimentary stone. M-type (mantle) granites are thought to have evolved directly from deeper melts. A-type (anorogenic) granites to be a special variety of I-type granites.