Black Lip Shell & Obsidian Bracelet 8" Obsidian Chakra: Base. Brings wisdom and offers protection. Good for learning. Good for the colon. Helps gastroenteritis, IBS, and nausea. Grounding. Helps self-defeating patterns and subconscious blockages. Acts as a mirror of the soul. BLACK LIP SHELL Embodying protection, these shells are also believed to have healing properties. Mentally, they stimulate intuition, imagination, and adaptability.