Opals have been worn and used for good luck and protection for a very long time. It is said to shield against negative energy and to ease anxiety and overcome self-doubt. Moss Opal is said to help with healing wounds from the past and with communication. Black Moss Opal particularly is thought to aid in achievement of personal goals, abundance, and prosperity. Black Moss Opal is also said to promote connection to the environment as well as to support physical and emotional growth.