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