Emerald
Emerald is known as the stone of fulfilment in love, it is said to bring domestic bliss, unity and loyalty in romantic partnerships. It is said to change colour upon unfaithfulness.
It also promotes friendship.
It opens the heart chakra.
Psychologically it is said to give strength to overcome life's misfortunes and recover from negative emotions. It enhances the enjoyment of life and is said to help those with claustrophobia.
It sharpens the intellect to give mental clarity and strengthen the memory. It is known as a wisdom stone aiding discernment. It also aids expression.
It is a good stone for stimulating group co-operation.
Physically it is said to aid recovery, detoxify the liver and treat the sinus, lungs, heart, spine and muscles. It also soothes the eyes and improves vision.
It can also help to alleviate rheumatism.
It is associated with the star signs:
Taurus/Leo/Libra/Scorpio