Know all about Dunite and Marl properties here. All properties of rocks are important as they define the type of rock and its application. Dunite belongs to Igneous Rocks while Marl belongs to Sedimentary Rocks.Texture of Dunite is Phaneritic whereas that of Marl is Earthy. Dunite appears Rough and Shiny and Marl appears Rough and Dull. The luster of Dunite is shiny while that of Marl is dull. Dunite is available in dark greenish - grey colors whereas Marl is available in beige, brown, green, grey, white colors. The commercial uses of Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Marl are creating artwork, soil conditioner.