Quartz and marble are among the most popular materials for kitchen and bathroom countertops. Both materials are available in a variety of colors and provide the appearance of natural stone. However, there are distinct differences between the two materials, such as marble being a natural stone while quartz is a manufactured stone, and quartz is more durable and less porous than marble, making it less susceptible to damage and wear. Quartz also required less maintenance than marble, with marble requiring sealing every six months. Learn about advantages and disadvantages of marble versus quartz countertops.