Quartz countertops are impervious to top scratches, stains, and heat. The ground-up quartz crystals and resins are combined under high heat and pressure, then cooled and polished to a gloss or honed to a matte finish. This forms a very hard granite-like surface that, unlike granite, is not porous and never needs to be sealed.
Benefits of quartz countertops are that they are almost impervious to scratches, stains, and heat. They do, however, tend to cost as much as or more than granite in most cases. From a design standpoint, manufacturers now offer slabs with enough flecks, swirls, and random patterning to make them almost indistinguishable from the real thing.