Know all about Talc carbonate and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Talc carbonate belongs to Metamorphic Rocks while Obsidian belongs to Igneous Rocks.Texture of Talc carbonate is Very Soft whereas that of Obsidian is Glassy. Talc carbonate appears Soft and Obsidian appears Shiny. The luster of Talc carbonate is pearly while that of Obsidian is vitreous. Talc carbonate is available in colourless, grey, white colors whereas Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Talc carbonate are manufacturing of baby powder and that of Obsidian are creating artwork, mirror, used in aquariums.