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