Agate is one of the best protective energy stones, especially for children, and is very calming and soothing. It also can help strengthen the body's connection to the earth. It can give courage, energy, strength, and dispels fears, all of which increase self-confidence. It can also lessen feelings of envy by grounding the emotions. It is a stone of harmony, and by bringing the elements of one's being into harmony it greatly enhances healing. Agate also enhances creativity and stimulates the intellect. Agate is considered a stone that brings good luck. It works with chakras according to stone colour. Agate is known to stimulate analytical abilities and perception, while eliminating negativity. It has also been reported to strengthen sight and promote marital fidelity, and said to aid with issues of the teeth and gums.
Agate comes in reds, browns, yellows, oranges, and blacks, sometimes with banding, stripes or zoning.