terrazzo floor

A form of mosaic flooring made by embedding marble, onyx, granite, or glass chips in Portland cement, polyacrylate modified Portland cement, or resinous matrices. The terrazzo is poured in place, cured, ground, and then polished. Rustic terrazzo is a variation where, in lieu of the grinding and polishing, the surface is washed with water otherwise treated to expose the chips. Quartz, quartzite, and river bed aggregate can also be used.