Know all about Obsidian and Luxullianite properties here. All properties of rocks are important as they define the type of rock and its application. Obsidian and Luxullianite belong to Igneous Rocks.Texture of Obsidian is Glassy whereas that of Luxullianite is Granular, Phaneritic. Obsidian appears Shiny and Luxullianite appears Veined or Pebbled. The luster of Obsidian is vitreous while that of Luxullianite is dull to grainy with sporadic parts pearly and vitreous. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas Luxullianite is available in black, grey, orange, pink, white colors. The commercial uses of Obsidian are creating artwork, mirror, used in aquariums and that of Luxullianite are creating artwork, curling, gemstone, laboratory bench tops, tombstones.