The noble Onyx is a most ancient stone, known and utilised by even the earliest civilisations for its powerful energy and sombre beauty. This crystal is a stone of happiness, good fotune, strength and thought to bring balance and self-control. It is very good for people under extreme emotional or mental stress. It connects you with the realm of the night, where your true self can be found. Onyx is also a stone of protection, and its purpose is to help prevent the drain of personal energy; while at the same time absorbing and transforming negative energy. Black Onyx is associated with the base chakra and grounding in crystal healing.