Know all about Gabbro and Rhyolite properties here. All properties of rocks are important as they define the type of rock and its application. Gabbro and Rhyolite belong to Igneous Rocks.Texture of Gabbro is Phaneritic whereas that of Rhyolite is Aphanitic, Glassy, Porphyritic. Gabbro appears Veined and Shiny and Rhyolite appears Banded. The luster of Gabbro is not available while that of Rhyolite is earthy. Gabbro is available in dark grey to black colors whereas Rhyolite is available in grey, white, light black colors. The commercial uses of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Rhyolite are gemstone, laboratory bench tops, jewelry.