Viola Roccia Prisma is a 4" x 12" honed marble tile in the Viola Roccia range. The surface carries the tonal, broken face of quarried stone and a honed face, flattened so it reads matte without shine. In a home it suits kitchens, entry halls and main-floor living areas. One box contains 14 pieces, enough for 4.63 sq ft. Marble is a calcite stone, so it wants a penetrating sealer and takes marks from acids such as lemon or wine. Made in Turkey.