Know all about Gneiss and Luxullianite properties here. All properties of rocks are important as they define the type of rock and its application. Gneiss belongs to Metamorphic Rocks while Luxullianite belongs to Igneous Rocks.Texture of Gneiss is Banded, Foliated, Platy whereas that of Luxullianite is Granular, Phaneritic. Gneiss appears Foliated and Luxullianite appears Veined or Pebbled. The luster of Gneiss is dull while that of Luxullianite is dull to grainy with sporadic parts pearly and vitreous. Gneiss is available in black, brown, pink, red, white colors whereas Luxullianite is available in black, grey, orange, pink, white colors. The commercial uses of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums and that of Luxullianite are creating artwork, curling, gemstone, laboratory bench tops, tombstones.