Know all about Hornfels and Nepheline Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Hornfels belongs to Metamorphic Rocks while Nepheline Syenite belongs to Igneous Rocks.Texture of Hornfels is Granular, Platy whereas that of Nepheline Syenite is Granular. Hornfels appears Dull and Nepheline Syenite appears Banded and Foilated. The luster of Hornfels is shiny while that of Nepheline Syenite is greasy to dull. Hornfels is available in brown, dark greenish - grey, green, reddish brown colors whereas Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Hornfels and Nepheline Syenite are cemetery markers, commemorative tablets, creating artwork.