Know all about Theralite and Pyrolite properties here. All properties of rocks are important as they define the type of rock and its application. Theralite and Pyrolite belong to Igneous Rocks.Texture of Theralite is Phaneritic whereas that of Pyrolite is Phaneritic. Theralite appears Veined and Shiny and Pyrolite appears Rough and Shiny. The luster of Theralite is waxy and dull while that of Pyrolite is shiny. Theralite is available in dark grey to black colors whereas Pyrolite is available in dark greenish - grey colors. The commercial uses of Theralite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones and that of Pyrolite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.