Know all about Obsidian and Norite properties here. All properties of rocks are important as they define the type of rock and its application. Obsidian and Norite belong to Igneous Rocks.Texture of Obsidian is Glassy whereas that of Norite is Phaneritic. Obsidian appears Shiny and Norite appears Veined and Shiny. The luster of Obsidian is vitreous while that of Norite is not available. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas Norite is available in dark grey to black colors. The commercial uses of Obsidian are creating artwork, mirror, used in aquariums and that of Norite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.