The 12 x 12 Old Granite Tile is a single stamp. Granite is a plutonic rock of the Earth's crust, formed by the cooling of magma. Proline offers this highly natural looking Old Granite Cleft Stone in a 12″ x 12″ square tile pattern. Old Granite is easily characterized by the vein running through the pattern. This pattern is available, as seen, with a 3/8″ grount line or a thinner 1/8″ grout line. Both versions have the look of a grouted, sand grout line.