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