Know all about Itacolumite and Aplite properties here. All properties of rocks are important as they define the type of rock and its application. Itacolumite belongs to Sedimentary Rocks while Aplite belongs to Igneous Rocks.Texture of Itacolumite is Clastic, Granular, Rough whereas that of Aplite is Granular, Graphic. Itacolumite appears Rough and Aplite appears Veined or Pebbled. The luster of Itacolumite is dull while that of Aplite is dull to pearly to subvitreous. 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 Aplite 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 Aplite are curling, gemstone, laboratory bench tops, small sculptures, tombstones.