Know all about Nepheline Syenite and Gossan 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 Gossan belongs to Metamorphic Rocks.Texture of Nepheline Syenite is Granular whereas that of Gossan is Rough, Sandy. Nepheline Syenite appears Banded and Foilated and Gossan appears Dull and Banded. The luster of Nepheline Syenite is greasy to dull while that of Gossan is metallic. Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas Gossan is available in brown, brown- black, gold, green, rust colors. The commercial uses of Nepheline Syenite are cemetery markers, creating artwork and that of Gossan are cemetery markers, commemorative tablets, gemstone.