Know all about Arkose and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Arkose and Argillite belong to Sedimentary Rocks.Texture of Arkose is Clastic whereas that of Argillite is Clastic, Polished. Arkose appears Rough and Dull and Argillite appears Rough and Dull. The luster of Arkose is dull while that of Argillite is waxy and dull. Arkose is available in reddish brown colors whereas Argillite is available in dark grey to black, pink, red, white colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Argillite are fire resistant, used to manufracture paperweights and bookends.