Silestone is a high-quality engineered quartz surfacing product that can be used for countertops, flooring, vanity tops, tub surrounds, table tops and much more. Silestone offers a unique mix of strength and elegance in all surfacing applications. It is composed of 93% natural quartz, and looks and feels like granite or limestone but is much more durable than other natural stones. In fact, quartz is surpassed in strength only by diamonds, sapphires and topaz.