Know all about Trachyandesite and Marl properties here. All properties of rocks are important as they define the type of rock and its application. Trachyandesite belongs to Igneous Rocks while Marl belongs to Sedimentary Rocks.Texture of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Marl is Earthy. Trachyandesite appears Dull and Soft and Marl appears Rough and Dull. The luster of Trachyandesite is earthy while that of Marl is dull. Trachyandesite is available in black, brown, light to dark grey colors whereas Marl is available in beige, brown, green, grey, white colors. The commercial uses of Trachyandesite are creating artwork, pottery and that of Marl are creating artwork, soil conditioner.