Know all about Comendite and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Comendite belongs to Igneous Rocks while Argillite belongs to Sedimentary Rocks.Texture of Comendite is Porphyritic whereas that of Argillite is Clastic, Polished. Comendite appears Foliated and Argillite appears Rough and Dull. The luster of Comendite is dull while that of Argillite is waxy and dull. Comendite is available in blue, bluish - grey colors whereas Argillite is available in dark grey to black, pink, red, white colors. The commercial uses of Comendite are cemetery markers and that of Argillite are fire resistant, used to manufracture paperweights and bookends.