Obsidian is a naturally occurring volcanic glass formed from rapidly cooled lava. It's known for its smooth, reflective surface and is often used for decoration, meditation, and metaphysical practices. Obsidian is believed to have protective properties, helping to cleanse negative energy. It is also used as a tool for scrying and divination. Spheres sometimes having minor imperfections due to the difficulty of creating a completely solid black sphere. Weight: 2lbs Diameter: 3.5 inches