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