por·ce·lain - a white vitrified translucent ceramic
Porcelain tiles are composed of clay, silica, sand and feldspar. They are formed with pressure and heat and fired at much higher rates than ceramic tile. Due to the firing process involved, they become more dense and absorb less water than ceramic tile; therefore are stronger. Because of the the moisture absorption rate, porcelain tiles can typically be installed outside, where ceramic tiles cannot. The myth: "If you chip a porcelain tile, you see the same color." The truth: Only if it's a color/through body porcelain. If a tile is a color/through body porcelain tile, it means that the color on top is the color all the way through the tile. Not all porcelain - is color/through body. Both non and color/through body porcelains are an excellent choice for a floor or wall covering product: it is durable, great for residential and commercial applications, easy to care for and long lasting.