Black obsidian is a glass-like rock that forms from volcanic lava cooling quickly. ... In the western US it is found at many locations in Arizona, California, Idaho, Nevada, New Mexico, Oregon, Washington, and Wyoming. Most obsidian used in the jewelry trade is produced in the United States. Obsidian spear point: A spear point fashioned from opaque black obsidian. Our Beautiful Stones and Crystals come in different shapes, sizes, and colors!
