The average price of quartzite per ton is $0.085. Quartzite was originally sandstone, which is a hard metamorphic rock. Pure quartzite is primarily white to grey in color. It occurs in shades of pink and red depending on the content of iron oxide. It is a decorative stone which is used for covering walls, as roofing tiles, as flooring and stair steps. Unlike sandstone, quartzite is free from pores and has a smooth surface. Pure quartzite is a source of silica.