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