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