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