Black Obsidian Sphere

Black obsidian is a natural volcanic glass formed from rapidly cooled lava. It's characterized by its shiny, smooth, and typically jet-black appearance. Obsidian lacks crystalline structure due to its rapid cooling process, giving it a conchoidal fracture, which means it breaks with sharp edges, similar to the way glass does.

Obsidian has been used for various purposes by ancient civilizations for thousands of years. It was prized for its sharp edges and was utilized for making cutting tools, arrowheads, and other implements. In addition to its practical uses, obsidian has also held cultural and spiritual significance. Many cultures associate obsidian with protection, grounding, and warding off negative energy.

Metaphysically, black obsidian is believed to have powerful healing properties. It's associated with the root chakra and is thought to help with grounding, protection, and removing emotional blockages. 

Some people use black obsidian in meditation or as a scrying tool for insight and self-reflection.

It's worth noting that because of its association with protection and cleansing, black obsidian is sometimes used in jewelry or placed in living spaces to absorb negative energy and promote a sense of balance and harmony.