Golden Quartzite: Slate has a unique look, and is an extraordinary and versatile material. Slate has very low porosity that makes it stain resistant and easy to maintain. Slate has a fine to medium grained surface texture. It renders a very graceful, natural finish to any building or home. Quartzite can be cleft like slate, or can be smooth and more similar to marble and granite in appearance. The major difference between slate and quartzite is quartz-ite’s ability to withstand many freeze-thaw cycles. Specifications Tiles: 10×20, 10×30, 10×40, 10×60 CM 20×20, 20×40, 20×60 CM 30X30, 30X60, 60×60, CM Thickness: Natural Split: 10-15 MM, 10-20 MM Calibrated / Sawn: 10, 12, 15, 18, 20 MM Edges: Hand Cut, Machine Cut Finishes: Natural, Brushed, Honed, Polished, Tumbled, Antique