GNL Granite Designs carries the full line of Quartz Master quartz surfaces. 93% natural quartz and 7% resin material – Quartz Master countertop surfaces are NSF, USGBC, Greenguard and Kosher certified. Quartz Master LLC® presently is the largest supplier of artificial stone (also called engineered stone) in North America. Engineered stone requires less maintenance, is resistance to stains and bacterial contamination. For use in bathroom, laundry, & kitchen countertops, vanity tops, back-splashes, wet bars, tub decks, tub/shower surrounds, wall cladding & furniture. Visit our countertop showroom in Slidell to see the entire Quartz Master line.