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