Know all about Gabbro and Sandstone properties here. All properties of rocks are important as they define the type of rock and its application. Gabbro belongs to Igneous Rocks while Sandstone belongs to Sedimentary Rocks.Texture of Gabbro is Phaneritic whereas that of Sandstone is Clastic, Granular, Rough. Gabbro appears Veined and Shiny and Sandstone appears Rough. The luster of Gabbro is not available while that of Sandstone is dull. Gabbro is available in dark grey to black colors whereas Sandstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Sandstone are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones, used in aquariums.