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