Know all about Trachyandesite and Dunite properties here. All properties of rocks are important as they define the type of rock and its application. Trachyandesite and Dunite belong to Igneous Rocks.Texture of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Dunite is Phaneritic. Trachyandesite appears Dull and Soft and Dunite appears Rough and Shiny. The luster of Trachyandesite is earthy while that of Dunite is shiny. Trachyandesite is available in black, brown, light to dark grey colors whereas Dunite is available in dark greenish - grey colors. The commercial uses of Trachyandesite are creating artwork, pottery and that of Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.