Know all about Chert and Itacolumite properties here. All properties of rocks are important as they define the type of rock and its application. Chert and Itacolumite belong to Sedimentary Rocks.Texture of Chert is Banded, Rough whereas that of Itacolumite is Clastic, Granular, Rough. Chert appears Glassy or Pearly and Itacolumite appears Rough. The luster of Chert is waxy and dull while that of Itacolumite is dull. Chert is available in black, brown, green, grey, red, white 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 Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms and that of Itacolumite are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.