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What is Terrazzo?

Derived from the Italian “Terrace” or “Terrazza” and by definition over the centuries: “A form of mosaic flooring made by embedding small pieces of marble in mortar and polishing.”

Today, the National Terrazzo and Mosaic Association (NTMA) defines this traditional material as follows: “Terrazzo consists of marble, granite, onyx or glass chips in portland cement, modified portland cement or resinous matrix. The terrazzo is poured, cured, ground and polished. Typically used as a finish for floors, stairs or walls, Terrazzo can be poured in place or precast.”

“Rustic Terrazzo is a variation where, in lieu of grinding and polishing, the surface is washed with water or otherwise treated to expose the chips. Quartz, quartzite and river bed aggregates can also be used.”

“Mosaic is an artistic finish composed of small hand cut pieces of smalti, glass or marble called tessarae. The tessarae are mounted on paper by hand to form mosaic sheets. These sheets of mosaic are then set in mortar on the job site to create beautiful patterns, designs, and murals.”