Know all about Marl and Shonkinite properties here. All properties of rocks are important as they define the type of rock and its application. Marl belongs to Sedimentary Rocks while Shonkinite belongs to Igneous Rocks.Texture of Marl is Earthy whereas that of Shonkinite is Earthy. Marl appears Rough and Dull and Shonkinite appears Banded and Foilated. The luster of Marl is dull while that of Shonkinite is subvitreous to dull. Marl is available in beige, brown, green, grey, white colors whereas Shonkinite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Marl are creating artwork, soil conditioner and that of Shonkinite are cemetery markers, creating artwork.