Know all about Pyrolite and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Pyrolite and Obsidian belong to Igneous Rocks.Texture of Pyrolite is Phaneritic whereas that of Obsidian is Glassy. Pyrolite appears Rough and Shiny and Obsidian appears Shiny. The luster of Pyrolite is shiny while that of Obsidian is vitreous. Pyrolite is available in dark greenish - grey colors whereas Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Pyrolite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Obsidian are creating artwork, mirror, used in aquariums.