Know all about Obsidian and Wackestone properties here. All properties of rocks are important as they define the type of rock and its application. Obsidian belongs to Igneous Rocks while Wackestone belongs to Sedimentary Rocks.Texture of Obsidian is Glassy whereas that of Wackestone is Clastic. Obsidian appears Shiny and Wackestone appears Rough and Dull. The luster of Obsidian is vitreous while that of Wackestone is dull. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas Wackestone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Obsidian are creating artwork, mirror, used in aquariums and that of Wackestone are cemetery markers, pottery.