Know all about Basaltic Trachyandesite and Pyrolite properties here. All properties of rocks are important as they define the type of rock and its application. Basaltic Trachyandesite and Pyrolite belong to Igneous Rocks.Texture of Basaltic Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Pyrolite is Phaneritic. Basaltic Trachyandesite appears Dull and Soft and Pyrolite appears Rough and Shiny. The luster of Basaltic Trachyandesite is not available while that of Pyrolite is shiny. Basaltic Trachyandesite is available in black, brown, light to dark grey colors whereas Pyrolite is available in dark greenish - grey colors. The commercial uses of Basaltic Trachyandesite are an oil and gas reservoir, commemorative tablets, creating artwork and that of Pyrolite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.