Know all about Marl and Claystone properties here. All properties of rocks are important as they define the type of rock and its application. Marl and Claystone belong to Sedimentary Rocks.Texture of Marl is Earthy whereas that of Claystone is Clastic. Marl appears Rough and Dull and Claystone appears Rough and Dull. The luster of Marl and Claystone is dull. Marl is available in beige, brown, green, grey, white colors whereas Claystone 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 Claystone are pottery.