Rainbow Moonstone is a feldspar, a potassium aluminium silicate mineral. It has a monoclinic crystal system and a hardness of 6 - 6.5.
Moonstone is known as the stone of new beginnings. It is said to promote lucid dreaming, especially during the full moon cycle. It is also believed to calm emotions and over-reactions, enhance intuition, psychic ability and empathy. Rainbow Moonstone emanates vitality, life force and joy, as well as offering one the gift of peace, harmony, emotional balance and strength. Rainbow Moonstone is a purification stone that is said to transform negativity and provide psychic protection. Additionally, Rainbow Moonstone can facilitate the alignment and activation of all chakras, while helping one to remain centered and grounded. It promotes optimism and is said to sustain one through dark times.