Know all about Diabase and Itacolumite properties here. All properties of rocks are important as they define the type of rock and its application. Diabase belongs to Igneous Rocks while Itacolumite belongs to Sedimentary Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Itacolumite is Clastic, Granular, Rough. Diabase appears Vesicular and Itacolumite appears Rough. The luster of Diabase is not available while that of Itacolumite is dull. Diabase is available in dark grey to black 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 Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Itacolumite are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.