The Quartz collection is a new generation of unglazed porcelain floor tiles with a rich appearance; pure ceramics thanks to the natural striations of sandy-looking grains and crystal-like particles in combination with varying colour hues. Quartz is available in large sizes, for example 24 x 24 and 36 x 36 inch, in neutral and earthy, warm and cool shades, and in both smooth and relief versions. Every tile is unique. A surface of Quartz tiles therefore has a rich look thanks to the subtle gradations between the tiles.