Know all about Dunite and Rhyodacite properties here. All properties of rocks are important as they define the type of rock and its application. Dunite and Rhyodacite belong to Igneous Rocks.Texture of Dunite is Phaneritic whereas that of Rhyodacite is Earthy. Dunite appears Rough and Shiny and Rhyodacite appears Skeletal. The luster of Dunite is shiny while that of Rhyodacite is greasy to dull. Dunite is available in dark greenish - grey colors whereas Rhyodacite is available in black to grey, dark greenish - grey colors. The commercial uses of Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Rhyodacite are cemetery markers, creating artwork.