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