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