Know all about Itacolumite and Phyllite properties here. All properties of rocks are important as they define the type of rock and its application. Itacolumite belongs to Sedimentary Rocks while Phyllite belongs to Metamorphic Rocks.Texture of Itacolumite is Clastic, Granular, Rough whereas that of Phyllite is Phyllitic Sheen, Slaty. Itacolumite appears Rough and Phyllite appears Crinkled or Wavy. The luster of Itacolumite is dull while that of Phyllite is phyllitic. 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 Phyllite is available in black to grey, light greenish 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 Phyllite are cemetery markers, commemorative tablets, creating artwork, writing slates.