Know all about Argillite and Rhyolite properties here. All properties of rocks are important as they define the type of rock and its application. Argillite belongs to Sedimentary Rocks while Rhyolite belongs to Igneous Rocks.Texture of Argillite is Clastic, Polished whereas that of Rhyolite is Aphanitic, Glassy, Porphyritic. Argillite appears Rough and Dull and Rhyolite appears Banded. The luster of Argillite is waxy and dull while that of Rhyolite is earthy. Argillite is available in dark grey to black, pink, red, white colors whereas Rhyolite is available in grey, white, light black colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Rhyolite are gemstone, laboratory bench tops, jewelry.