Know all about Argillite and Claystone properties here. All properties of rocks are important as they define the type of rock and its application. Argillite and Claystone belong to Sedimentary Rocks.Texture of Argillite is Clastic, Polished whereas that of Claystone is Clastic. Argillite appears Rough and Dull and Claystone appears Rough and Dull. The luster of Argillite is waxy and dull while that of Claystone is dull. Argillite is available in dark grey to black, pink, red, white colors whereas Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Claystone are pottery.