Know all about Rhyodacite and Gabbro properties here. All properties of rocks are important as they define the type of rock and its application. Rhyodacite and Gabbro belong to Igneous Rocks.Texture of Rhyodacite is Earthy whereas that of Gabbro is Phaneritic. Rhyodacite appears Skeletal and Gabbro appears Veined and Shiny. The luster of Rhyodacite is greasy to dull while that of Gabbro is not available. Rhyodacite is available in black to grey, dark greenish - grey colors whereas Gabbro is available in dark grey to black colors. The commercial uses of Rhyodacite are cemetery markers, creating artwork and that of Gabbro are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.