Know all about Itacolumite and Nepheline Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Itacolumite belongs to Sedimentary Rocks while Nepheline Syenite belongs to Igneous Rocks.Texture of Itacolumite is Clastic, Granular, Rough whereas that of Nepheline Syenite is Granular. Itacolumite appears Rough and Nepheline Syenite appears Banded and Foilated. The luster of Itacolumite is dull while that of Nepheline Syenite is greasy 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 Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white 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 Nepheline Syenite are cemetery markers, creating artwork.