Know all about Marl and Gabbro properties here. All properties of rocks are important as they define the type of rock and its application. Marl belongs to Sedimentary Rocks while Gabbro belongs to Igneous Rocks.Texture of Marl is Earthy whereas that of Gabbro is Phaneritic. Marl appears Rough and Dull and Gabbro appears Veined and Shiny. The luster of Marl is dull while that of Gabbro is not available. Marl is available in beige, brown, green, grey, white colors whereas Gabbro is available in dark grey to black colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.