Quartz and Corian are both popular materials used in kitchen countertops, but they differ in cost and performance. Corian is a solid surface material made from acrylic resin, while quartz is a natural stone. Corian is generally less expensive than quartz, but it is also less durable and more susceptible to scratches. Quartz, on the other hand, is more durable and scratch-resistant, but it is also more expensive. Ultimately, the choice between quartz and Corian depends on the individual’s budget and needs.