Della Terra is a natural quartz surface, it is a blend of nature and technology, combining beauty and functionality in a high performance surface. Della Terra is comprised of more than 93% natural quartz crystals, one of the hardest minerals in nature. Color controlled quartz is blended together with technologically advanced polymers. Because of its high quartz content, Arizona Tile's Della Terra Quartz surfaces are ultra-durable and resistant to scratches and chipping. Its dense composition also makes Della Terra Quartz highly resistant to staining. Photo: Aperture Architectural Images