Know all about Hawaiite and Itacolumite properties here. All properties of rocks are important as they define the type of rock and its application. Hawaiite belongs to Igneous Rocks while Itacolumite belongs to Sedimentary Rocks.Texture of Hawaiite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Itacolumite is Clastic, Granular, Rough. Hawaiite appears Dull and Soft and Itacolumite appears Rough. The luster of Hawaiite is not available while that of Itacolumite is dull. Hawaiite is available in black, brown, light to dark grey 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 Hawaiite are creating artwork, sea defence and that of Itacolumite are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.