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