A stone of lightness, joy and beauty. Enhances confidence, assertion, growth and change. Sharpens and opens the mind to new levels of awareness. Enables you to take responsibility for your own life. Banishes lethargy, apathy and exhaustion. Strengthens the immune system, metabolism and benefits the skin. Aids disorders of the heart, thymus, lungs, gallbladder, liver, spleen and intestinal tract. Helps to overcome hypochondria. August birthstone.