Quantum Quartz is an engineered stone manufactured using 93% pure, natural quartz, one of the hardest minerals on Earth. The other 7% combine resin and pigments, resulting in a large variety of colors and patterns that are guaranteed to suit any style. The finest materials produced by highly qualified craftsmen with the latest techniques in the quartz industry has created a surface of superior durability and performance. The quality of our products allows us to proudly offer our customers a Lifetime Limited Warranty on our countertops. Stone Warehouse of Tampa is the exclusive distributor of Quantum Quartz in the United States. One of the largest suppliers of natural and engineered stone in Florida, Stone Warehouse of Tampa is a family owned business with locations in Tampa and Orlando. Source: Wikipedia.