Know all about Shonkinite and Itacolumite properties here. All properties of rocks are important as they define the type of rock and its application. Shonkinite belongs to Igneous Rocks while Itacolumite belongs to Sedimentary Rocks.Texture of Shonkinite is Earthy whereas that of Itacolumite is Clastic, Granular, Rough. Shonkinite appears Banded and Foilated and Itacolumite appears Rough. The luster of Shonkinite is subvitreous to dull while that of Itacolumite is dull. Shonkinite is available in brown, buff, cream, green, grey, pink, 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 Shonkinite are cemetery markers, creating artwork and that of Itacolumite are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.