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