Onyx: Black is an icon of courage to settle matters to an happy ending. It is a strong grounding stone, helps one to concentrate, wonderful for protection after dark, whether it be at home, at work, or while travelling. Especially good for preventing nightmares. It absorbs grief, confusion, fear, helplessness , and depression. It connects you to your destiny. At work it helps you to stand up for yourself from unfair criticism without loosing your temper. Physically good for working against chemical and fuel emissions and chemical wastes. Also good for ear problems, and helping you to hear what is important for you to hear. Recharge it in sunlight. Known as the stone of self mastery and strong discipline.