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