Granite (Granite), the major component of the continental crust, is a kind of magma below the surface to form igneous rock , belonging to deep-seated intrusive rocks. Primarily composed of feldspar, mica and quartz. Granite origin is Latin GRANUM, meaning grain or grain. Granites are plutonic rocks, formation and development of common good, of mineral particles visible to the naked eye, hence the name. Granite easily weathered, beautiful color, appearance and color can be maintained more than a century, due to its high hardness, wear resistance, except for superior architectural decoration engineering, the hall outside the ground, still open the preferred material for carving.