Know all about Gabbro and Gneiss properties here. All properties of rocks are important as they define the type of rock and its application. Gabbro belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks.Texture of Gabbro is Phaneritic whereas that of Gneiss is Banded, Foliated, Platy. Gabbro appears Veined and Shiny and Gneiss appears Foliated. The luster of Gabbro is not available while that of Gneiss is dull. Gabbro is available in dark grey to black colors whereas Gneiss is available in black, brown, pink, red, white colors. The commercial uses of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums.