Know all about Argillite and Schist properties here. All properties of rocks are important as they define the type of rock and its application. Argillite belongs to Sedimentary Rocks while Schist belongs to Metamorphic Rocks.Texture of Argillite is Clastic, Polished whereas that of Schist is Foliated, Platy. Argillite appears Rough and Dull and Schist appears Layered and Shiny. The luster of Argillite is waxy and dull while that of Schist is shiny. Argillite is available in dark grey to black, pink, red, white colors whereas Schist is available in black, blue, brown, dark brown, green, grey, silver colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Schist are used in aquariums, writing slates.