Quartzite is often confused with quartz, but it is not the same. Quartzite is a natural stone that originated as sandstone and also includes the mineral quartz, which is what gives it sparkle. In essence, quartzite is a fusion of marble and granite, creating the elegant look of marble, with the durability of granite. Like quartz countertops, quartzite doesn’t etch, but does require sealing to protect its natural beauty.