BLUE MARE EXOTIC QUARTZITEBlue Mare Exotic Quartzite is a Brazilian stone that has a greyish blue background with rustic veining. Quartzite worktops are porous in nature, they need to be properly sealed to avoid staining and bacterial and fungal contaminations. Sealing is recommended once a year if the quartzite slab is dense and less porous. Though they are scratch resistant, avoid using abrasive cleaners on the surface which eventually will wear out the polish. Read More: