Know all about Variolite and Nepheline Syenite properties here. All properties of rocks are important as they define the type of rock and its application. Variolite and Nepheline Syenite belong to Igneous Rocks.Texture of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Nepheline Syenite is Granular. Variolite appears Dull and Soft and Nepheline Syenite appears Banded and Foilated. The luster of Variolite is not available while that of Nepheline Syenite is greasy to dull. Variolite is available in black, brown, light to dark grey colors whereas Nepheline Syenite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Variolite and Nepheline Syenite are cemetery markers, creating artwork.