Know all about Itacolumite and Theralite properties here. All properties of rocks are important as they define the type of rock and its application. Itacolumite belongs to Sedimentary Rocks while Theralite belongs to Igneous Rocks.Texture of Itacolumite is Clastic, Granular, Rough whereas that of Theralite is Phaneritic. Itacolumite appears Rough and Theralite appears Veined and Shiny. The luster of Itacolumite is dull while that of Theralite is waxy and dull. 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 Theralite is available in dark grey to black 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 Theralite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.