Know all about Quartzite and Tuff properties here. All properties of rocks are important as they define the type of rock and its application. Quartzite belongs to Metamorphic Rocks while Tuff belongs to Igneous Rocks.Texture of Quartzite is Foliated, Granular whereas that of Tuff is Clastic, Pyroclastic. Quartzite appears Lustrous and Tuff appears Dull, Vesicular and Foilated. The luster of Quartzite is vitreous while that of Tuff is vitreous to dull. Quartzite is available in black, blue, brown, green, light grey, purple, white, yellow colors whereas Tuff is available in brown, grey, yellow colors. The commercial uses of Quartzite are an oil and gas reservoir, as armour rock for sea walls, cemetery markers, commemorative tablets, in aquifers, laboratory bench tops, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones, used in aquariums and that of Tuff are creating artwork.