Know all about Tuff and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Tuff belongs to Igneous Rocks while Gritstone belongs to Sedimentary Rocks.Texture of Tuff is Clastic, Pyroclastic whereas that of Gritstone is Earthy. Tuff appears Dull, Vesicular and Foilated and Gritstone appears Layered and Foliated. The luster of Tuff is vitreous to dull while that of Gritstone is dull. Tuff is available in brown, grey, yellow colors whereas Gritstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Tuff are creating artwork and that of Gritstone are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo), tombstones.