Know all about Argillite and Norite properties here. All properties of rocks are important as they define the type of rock and its application. Argillite belongs to Sedimentary Rocks while Norite belongs to Igneous Rocks.Texture of Argillite is Clastic, Polished whereas that of Norite is Phaneritic. Argillite appears Rough and Dull and Norite appears Veined and Shiny. The luster of Argillite is waxy and dull while that of Norite is not available. Argillite and Norite are available in dark grey to black, pink, red, white colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Norite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.