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