Know all about Dunite and Itacolumite properties here. All properties of rocks are important as they define the type of rock and its application. Dunite belongs to Igneous Rocks while Itacolumite belongs to Sedimentary Rocks.Texture of Dunite is Phaneritic whereas that of Itacolumite is Clastic, Granular, Rough. Dunite appears Rough and Shiny and Itacolumite appears Rough. The luster of Dunite is shiny while that of Itacolumite is dull. Dunite is available in dark greenish - grey colors whereas Itacolumite 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 Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Itacolumite are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.