Nephrite, also known as Green Jade, is considered a symbol of serenity, and purity. It has been known to bring good luck, friendship, harmony, and peace. Simply holding the stone and sitting in silence will bring a sense of calm to you. On a physical level, it has a powerful and calming vibration that is also highly protective. It is also known to be the stone of the heart, but can also improve the functions of the kidney, adrenal glands, spleen, and support good metabolism.