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