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