Know all about Tuff and Nepheline Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Tuff and Nepheline Syenite belong to Igneous Rocks.Texture of Tuff is Clastic, Pyroclastic whereas that of Nepheline Syenite is Granular. Tuff appears Dull, Vesicular and Foilated and Nepheline Syenite appears Banded and Foilated. The luster of Tuff is vitreous to dull while that of Nepheline Syenite is greasy to dull. Tuff is available in brown, grey, yellow colors whereas Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Tuff are creating artwork and that of Nepheline Syenite are cemetery markers, creating artwork.