Know all about Luxullianite and Siltstone properties here. All properties of rocks are important as they define the type of rock and its application. Luxullianite belongs to Igneous Rocks while Siltstone belongs to Sedimentary Rocks.Texture of Luxullianite is Granular, Phaneritic whereas that of Siltstone is Clastic. Luxullianite appears Veined or Pebbled and Siltstone appears Rough. The luster of Luxullianite is dull to grainy with sporadic parts pearly and vitreous while that of Siltstone is dull. Luxullianite is available in black, grey, orange, pink, white colors whereas Siltstone is available in brown, red, reddish brown colors. The commercial uses of Luxullianite are creating artwork, curling, gemstone, laboratory bench tops, tombstones and that of Siltstone are raw material for the manufacture of mortar, soil conditioner.