Quartz countertops are engineered stone surfaces made from a combination of natural quartz crystals (typically around 90-95%) and resins, polymers, and pigments (5-10%). The quartz crystals are crushed and then mixed with the binding agents to create a solid and non-porous material. Since they are engineered, they can be designed to mimic the look of natural stones like marble or granite, as well as offer unique and contemporary designs that may not be found in nature.