Golden Obsidian is a variety of obsidian that has a golden sheen effect. Obsidian is a volcanic glass, a rock rather than a mineral. It is formed in the latest stages of volcanic eruptions. Metaphysically is is used to alleviate pain, reducing tension, and releasing energy. It is protective and helps remove negativity. Also known as Sheen Obsidian. Mohs hardness 5-5.5.