Know all about Itacolumite and Appinite properties here. All properties of rocks are important as they define the type of rock and its application. Itacolumite belongs to Sedimentary Rocks while Appinite belongs to Igneous Rocks.Texture of Itacolumite is Clastic, Granular, Rough whereas that of Appinite is Porphyritic. Itacolumite appears Rough and Appinite appears Dull, Banded and Foilated. The luster of Itacolumite is dull while that of Appinite is subvitreous to 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 Appinite is available in black, bluish - grey, brown, dark greenish - grey, green, grey 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 Appinite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner.