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