Know all about Carbonatite and Nepheline Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Carbonatite and Nepheline Syenite belong to Igneous Rocks.Texture of Carbonatite is Granular, Poikiloblastic whereas that of Nepheline Syenite is Granular. Carbonatite appears Dull, Banded and Foilated and Nepheline Syenite appears Banded and Foilated. The luster of Carbonatite is subvitreous to dull while that of Nepheline Syenite is greasy to dull. Carbonatite is available in black, brown, colourless, green, grey, pink, white colors whereas Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Carbonatite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux and that of Nepheline Syenite are cemetery markers, creating artwork.