Know all about Shale and Gabbro properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Gabbro belongs to Igneous Rocks.Texture of Shale is Clastic, Splintery whereas that of Gabbro is Phaneritic. Shale appears Muddy and Gabbro appears Veined and Shiny. The luster of Shale is dull while that of Gabbro is not available. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Gabbro is available in dark grey to black colors. The commercial uses of Shale are creating artwork, pottery and that of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.