AgateAssociated with the root, solar plexus, and throat chakras. It can enable the wearer to choose between true friends and false friends. It is said to protect children from danger, bring prosperity and even prevent miscarriages. It should be worn directly on the skin and when in the sun, its energy is increased. It can enhance mental function, can improve concentration, perceptions, and analytical abilities. It can soothe and calm inner anger or tension and creates a sense of security and safety.