Know all about Phonolite and Gabbro properties here. All properties of rocks are important as they define the type of rock and its application. Phonolite and Gabbro belong to Igneous Rocks.Texture of Phonolite is Granular whereas that of Gabbro is Phaneritic. Phonolite appears Banded and Foilated and Gabbro appears Veined and Shiny. The luster of Phonolite is greasy to dull while that of Gabbro is not available. Phonolite is available in brown, buff, cream, green, grey, pink, white colors whereas Gabbro is available in dark grey to black colors. The commercial uses of Phonolite are cemetery markers, creating artwork and that of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.