Know all about Nepheline Syenite and Icelandite properties here. All properties of rocks are important as they define the type of rock and its application. Nepheline Syenite and Icelandite belong to Igneous Rocks.Texture of Nepheline Syenite is Granular whereas that of Icelandite is Aphanitic to Porphyritic. Nepheline Syenite appears Banded and Foilated and Icelandite appears Dull and Soft. The luster of Nepheline Syenite is greasy to dull while that of Icelandite is vitreous. Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas Icelandite is available in bluish - grey, grey, pink, yellow colors. The commercial uses of Nepheline Syenite and Icelandite are cemetery markers, creating artwork.