Know all about Obsidian and Jasperoid properties here. All properties of rocks are important as they define the type of rock and its application. Obsidian belongs to Igneous Rocks while Jasperoid belongs to Sedimentary Rocks.Texture of Obsidian is Glassy whereas that of Jasperoid is Earthy. Obsidian appears Shiny and Jasperoid appears Glassy or Pearly. The luster of Obsidian is vitreous while that of Jasperoid is vitreous and pearly. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas Jasperoid is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Obsidian are creating artwork, mirror, used in aquariums and that of Jasperoid are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).