Know all about Epidosite and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Epidosite belongs to Igneous Rocks while Argillite belongs to Sedimentary Rocks.Texture of Epidosite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Argillite is Clastic, Polished. Epidosite appears Dull and Soft and Argillite appears Rough and Dull. The luster of Epidosite is not available while that of Argillite is waxy and dull. Epidosite is available in black, brown, light to dark grey colors whereas Argillite is available in dark grey to black, pink, red, white colors. The commercial uses of Epidosite are commemorative tablets, creating artwork and that of Argillite are fire resistant, used to manufracture paperweights and bookends.