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