Know all about Websterite and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Websterite belongs to Igneous Rocks while Argillite belongs to Sedimentary Rocks.Texture of Websterite is Clastic, Granular, Phaneritic, Porphyritic whereas that of Argillite is Clastic, Polished. Websterite appears Layered, Banded, Veined and Shiny and Argillite appears Rough and Dull. The luster of Websterite is dull to vitreous to submetallic while that of Argillite is waxy and dull. Websterite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors whereas Argillite is available in dark grey to black, pink, red, white colors. The commercial uses of Websterite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones and that of Argillite are fire resistant, used to manufracture paperweights and bookends.