Cortina Quartz is a blend of white and half-white stone; unlike other stones, this stone has peculiar grey-wavy veins giving a wavy and moving effect to the surface. Cortina Quartz worktops will not stain from these common kitchen liquids. If sufficient care and attention are not provided to cleaning and sealing, stones like Quartz and other worktop materials would readily stain from typical kitchen liquids like coffee, tea, or lemon juice. Cleaning the counter using a damp or wet cloth quite often is advised. Available in 20MM and 30MM thicknesses.