Know all about Marl and Mudstone properties here. All properties of rocks are important as they define the type of rock and its application. Marl and Mudstone belong to Sedimentary Rocks.Texture of Marl is Earthy whereas that of Mudstone is Clastic. Marl appears Rough and Dull and Mudstone appears Rough and Dull. The luster of Marl and Mudstone is dull. Marl is available in beige, brown, green, grey, white colors whereas Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Mudstone are creating artwork, pottery.