Know all about Gabbro and Limestone properties here. All properties of rocks are important as they define the type of rock and its application. Gabbro belongs to Igneous Rocks while Limestone belongs to Sedimentary Rocks.Texture of Gabbro is Phaneritic whereas that of Limestone is Clastic or Non-Clastic. Gabbro appears Veined and Shiny and Limestone appears Rough and Banded. The luster of Gabbro is not available while that of Limestone is dull to pearly. Gabbro is available in dark grey to black colors whereas Limestone is available in beige, black, blue, brown, cream, gold, green, grey, light green, light grey, linen, pink, red, rust, silver, white, yellow colors. The commercial uses of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Limestone are animal feed filler, as a feed additive for livestock, paper industry, raw material for manufacture of quicklime, slaked lime, soil conditioner, used in aquariums, whiting material in toothpaste, paint and paper.