Know all about Argillite and Granophyre properties here. All properties of rocks are important as they define the type of rock and its application. Argillite belongs to Sedimentary Rocks while Granophyre belongs to Igneous Rocks.Texture of Argillite is Clastic, Polished whereas that of Granophyre is Granophyric. Argillite appears Rough and Dull and Granophyre appears Veined or Pebbled. The luster of Argillite is waxy and dull while that of Granophyre is dull to grainy with sporadic parts pearly and vitreous. Argillite is available in dark grey to black, pink, red, white colors whereas Granophyre is available in black, grey, orange, pink, white colors. The commercial uses of Argillite are fire resistant, used to manufracture paperweights and bookends and that of Granophyre are curling, gemstone, laboratory bench tops, tombstones.