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