Know all about Troctolite and Trachyandesite properties here. All properties of rocks are important as they define the type of rock and its application. Troctolite and Trachyandesite belong to Igneous Rocks.Texture of Troctolite is Phaneritic whereas that of Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Troctolite appears Veined and Shiny and Trachyandesite appears Dull and Soft. The luster of Troctolite is not available while that of Trachyandesite is earthy. Troctolite is available in dark grey to black colors whereas Trachyandesite is available in black, brown, light to dark grey colors. The commercial uses of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Trachyandesite are creating artwork, pottery.