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