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