Most quartz engineered stones are made up of 93% quartz taken from a quarry and added to 7% polymer resin. Most colours are available and very consistent in make up. Quartz stone is non-porous and very durable making it very difficuly to mark or scratch. Currently we are using the following makes of quartz: Okite, Silestone, Technistone and Stone Italiana. Quartz Stone No.08 vanity tops with undermounted sinks     Quartz Stone No.01 vanity tops with undermounted sinks     Quartz Stone No.04 kitchen worktops and splashbacks     Quartz Stone No.11 kitchen worktops with undermounted sink and full height splashbacks