Rainbow Moonstone is much prized for its vibrations of feminine or goddess energy, and the stones themselves seem to glow from within. This blue color and sheen represent the power of the full moon and Rainbow Moonstone over the psychic and spiritual world. When a full rainbow appears in a moonstone, it is an unmistakable sign of that stone’s incredible magical power. Rainbow Moonstone is a stone of protection, shielding the aura from unwanted energies and deflecting negative entities or influences that may arise during therapy or healing sessions.