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