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