Know all about Marl and Conglomerate properties here. All properties of rocks are important as they define the type of rock and its application. Marl and Conglomerate belong to Sedimentary Rocks.Texture of Marl is Earthy whereas that of Conglomerate is Clastic. Marl appears Rough and Dull and Conglomerate appears Shiny and Rounded. The luster of Marl and Conglomerate is dull. Marl is available in beige, brown, green, grey, white colors whereas Conglomerate is available in beige, black, brown, buff, light to dark grey, orange, rust, white, yellow colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Conglomerate are cemetery markers, in aquifers, tombstones.