Know all about Itacolumite and Granophyre properties here. All properties of rocks are important as they define the type of rock and its application. Itacolumite belongs to Sedimentary Rocks while Granophyre belongs to Igneous Rocks.Texture of Itacolumite is Clastic, Granular, Rough whereas that of Granophyre is Granophyric. Itacolumite appears Rough and Granophyre appears Veined or Pebbled. The luster of Itacolumite is dull while that of Granophyre is dull to grainy with sporadic parts pearly and vitreous. Itacolumite is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors whereas Granophyre is available in black, grey, orange, pink, white colors. The commercial uses of Itacolumite are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones and that of Granophyre are curling, gemstone, laboratory bench tops, tombstones.