Know all about Troctolite and Nepheline Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Troctolite and Nepheline Syenite belong to Igneous Rocks.Texture of Troctolite is Phaneritic whereas that of Nepheline Syenite is Granular. Troctolite appears Veined and Shiny and Nepheline Syenite appears Banded and Foilated. The luster of Troctolite is not available while that of Nepheline Syenite is greasy to dull. Troctolite is available in dark grey to black colors whereas Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Nepheline Syenite are cemetery markers, creating artwork.