Know all about Pseudotachylite and Harzburgite properties here. All properties of rocks are important as they define the type of rock and its application. Pseudotachylite belongs to Metamorphic Rocks while Harzburgite belongs to Igneous Rocks.Texture of Pseudotachylite is Quench whereas that of Harzburgite is Phaneritic. Pseudotachylite appears Dull and Soft and Harzburgite appears Rough and Shiny. The luster of Pseudotachylite is vitreous while that of Harzburgite is shiny. Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors whereas Harzburgite is available in dark greenish - grey colors. The commercial uses of Pseudotachylite are creating artwork, gemstone and that of Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.