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