Know all about Obsidian and Mugearite properties here. All properties of rocks are important as they define the type of rock and its application. Obsidian and Mugearite belong to Igneous Rocks.Texture of Obsidian is Glassy whereas that of Mugearite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Obsidian appears Shiny and Mugearite appears Dull and Soft. The luster of Obsidian is vitreous while that of Mugearite is not available. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas Mugearite is available in black, brown, light to dark grey colors. The commercial uses of Obsidian and Mugearite are creating artwork, mirror, used in aquariums.