Know all about Gabbro and Taconite properties here. All properties of rocks are important as they define the type of rock and its application. Gabbro belongs to Igneous Rocks while Taconite belongs to Sedimentary Rocks.Texture of Gabbro is Phaneritic whereas that of Taconite is Banded, Trellis. Gabbro appears Veined and Shiny and Taconite appears Layered, Banded, Veined and Shiny. The luster of Gabbro is not available while that of Taconite is earthy. Gabbro is available in dark grey to black colors whereas Taconite is available in red, reddish brown colors. The commercial uses of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Taconite are as a touchstone, cemetery markers, creating artwork.