| Description: | Commercial granite is an igneous or metamorphic stone that is mainly comprised of silica, feldspar, mica, and quartz. Stones labeled as granite usually have a tightly packed, granular appearance to their surface. They may have veins, flecks of color, or be solid. Granite comes in a wide range of colors from very light to very dark, and each slab has some degree of variation in color over its surface. Commercial marble is either metamorphic or sedimentary in composition, made primarily of calcite. Some “marbles” may be a type of quartzite or quartz-based stone, and green “marbles” are made of a mineral called serpentine. Marble is usually characterized by having veins and a smoother surface texture than granite. Like granite, marble ranges from white to black in color and will have some degree of variation in color over its surface. Both marble and granite vary in appearance from slab to slab because the minerals that make up the color of the stone may change depending on where it is cut from. For this reason, it is always recommended that you visit a stone yard and select the stone you want in person. |
