Know all about Argillite and Sandstone properties here. All properties of rocks are important as they define the type of rock and its application. Argillite and Sandstone belong to Sedimentary Rocks.Texture of Argillite is Clastic, Polished whereas that of Sandstone is Clastic, Granular, Rough. Argillite appears Rough and Dull and Sandstone appears Rough. The luster of Argillite is waxy and dull while that of Sandstone is dull. Argillite is available in dark grey to black, pink, red, white colors whereas Sandstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Sandstone are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones, used in aquariums.