Know all about Websterite and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Websterite and Obsidian belong to Igneous Rocks.Texture of Websterite is Clastic, Granular, Phaneritic, Porphyritic whereas that of Obsidian is Glassy. Websterite appears Layered, Banded, Veined and Shiny and Obsidian appears Shiny. The luster of Websterite is dull to vitreous to submetallic while that of Obsidian is vitreous. Websterite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors whereas Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Websterite 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.