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