Obsidian stone in alpaca silver. It is a metal of the result of the combination of 50% of silver with 50% of copper. It is waterproof. This can likely be attributed to black obsidian’s calming energy and the effect it can have on your mental state. By removing darkness from your life, you’re free to focus on the good. The weight of the past is lifted, which is said to give your body a chance to regulate and recover.