Know all about Obsidian and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Obsidian and Obsidian belong to Igneous Rocks.Texture of Obsidian is Glassy whereas that of Obsidian is Glassy. Obsidian appears Shiny and Obsidian appears Shiny. The luster of Obsidian and Obsidian is vitreous. Obsidian and Obsidian are available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Obsidian and Obsidian are creating artwork, mirror, used in aquariums.