Know all about Lignite and Luxullianite properties here. All properties of rocks are important as they define the type of rock and its application. Lignite belongs to Sedimentary Rocks while Luxullianite belongs to Igneous Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Luxullianite is Granular, Phaneritic. Lignite appears Veined or Pebbled and Luxullianite appears Veined or Pebbled. The luster of Lignite is dull to vitreous to submetallic while that of Luxullianite is dull to grainy with sporadic parts pearly and vitreous. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas Luxullianite is available in black, grey, orange, pink, white colors. The commercial uses of Lignite are electricity generation and that of Luxullianite are creating artwork, curling, gemstone, laboratory bench tops, tombstones.