SiOStone collection granite composite sinks are constructed of 80 percent natural quartz for enduring durability with the look of real stone. SiOStone's proprietary granite composite is three times harder than natural granite and 100 percent pore free, ensuring a naturally hygienic and food-safe finish that is easy to clean. Crafted in Italy, this sink is heat resistant up to 500 degrees Fahrenheit and is scratch, chip, impact, and stain resistant. The beautiful color is UV-stable with maximum color intensity that will not fade. Upgrade your kitchen with the premium look and exceptional quality of a SiOStone sink.