Know all about Argillite and Felsite properties here. All properties of rocks are important as they define the type of rock and its application. Argillite belongs to Sedimentary Rocks while Felsite belongs to Igneous Rocks.Texture of Argillite is Clastic, Polished whereas that of Felsite is Arborescent Patterned, Vitreous. Argillite appears Rough and Dull and Felsite appears Layered, Banded, Veined and Shiny. The luster of Argillite is waxy and dull while that of Felsite is vitreous. Argillite is available in dark grey to black, pink, red, white colors whereas Felsite is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Felsite are mirror, jewelry.