Moonstone is a member of the feldspar family. The feldspars are a group of minerals found in many rocks (particularly granite, volcanic and metamorphic). It is a transparent, milky-white color with floating opalescent white and blue light within the body of the stone. The shimmer is caused by the intergrowth of two different types of feldspar with different refractive indexes. Moonstone can be colorless, gray, brown, yellow, pink, green, transparent or translucent. Rainbow moonstone is labradorite feldspar with a variety of rainbow hues. Labradorite is feldspar with a dark background that emits a multicolored shimmer. Vibrating with the feminine wisdom and Goddess energy of the waxing and full Moon, has a reflective, calming energy. It helps to strengthen intuition and psychic perception and brings balance and harmony with the All. It is said to have the power to grant wishes. The Rainbow effect invokes a spectrum of light, and feels cleansing and uplifting.