Know all about Lignite and Dunite properties here. All properties of rocks are important as they define the type of rock and its application. Lignite belongs to Sedimentary Rocks while Dunite belongs to Igneous Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Dunite is Phaneritic. Lignite appears Veined or Pebbled and Dunite appears Rough and Shiny. The luster of Lignite is dull to vitreous to submetallic while that of Dunite is shiny. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas Dunite is available in dark greenish - grey colors. The commercial uses of Lignite are electricity generation and that of Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.