Engineered Quartz (not Quartzite, another appealing natural stone used in countertops applications) is a man-made product created mostly from natural materials. It’s made of 90 to 94 percent ground quartz and 6 to 10 percent resins and pigments that are combined into durable and nonporous slabs. Engineered Quartz boasts durability, numerous color options, and maintenance free qualities for kitchen and bath countertops applications. The added resins in this product do not make it heat resistant and can be damaged in high temperatures. Rivers Granite carries LG Viatera Quartz as well as Vicostone Quartz.