GR Stone is an authorized dealer of Vicostone Quartz. Made from 93% pure natural quartz, Vicostone Quartz is extremely hard and is heat, cold, stain, scratch, and bacteria resistant. It’s an ideal surface for kitchen countertops, bathrooms, flooring and wall siding. It also comes with a 15-year limited transferable warranty. You can see the entire Vicostone Quartz colors at our showroom in Kenilworth, NJ.