Know all about Nepheline Syenite and Lamprophyre properties here. All properties of rocks are important as they define the type of rock and its application. Nepheline Syenite and Lamprophyre belong to Igneous Rocks.Texture of Nepheline Syenite is Granular whereas that of Lamprophyre is Porphyritic. Nepheline Syenite appears Banded and Foilated and Lamprophyre appears Dull, Banded and Foilated. The luster of Nepheline Syenite is greasy to dull while that of Lamprophyre is subvitreous to dull. Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Nepheline Syenite are cemetery markers, creating artwork and that of Lamprophyre are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).