Know all about Dunite and Tuff properties here. All properties of rocks are important as they define the type of rock and its application. Dunite and Tuff belong to Igneous Rocks.Texture of Dunite is Phaneritic whereas that of Tuff is Clastic, Pyroclastic. Dunite appears Rough and Shiny and Tuff appears Dull, Vesicular and Foilated. The luster of Dunite is shiny while that of Tuff is vitreous to dull. Dunite is available in dark greenish - grey colors whereas Tuff is available in brown, grey, yellow colors. The commercial uses of Dunite and Tuff are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.