Yellow Opal resonates with the Solar Plexus Chakra and therefore has an uplifting and revitalizing effect. It is useful to bring on more positivity and positive energy and can also be used as an abundance stone. It can help to reinforce positive emotions and bring emotional stability to one who may have a chaotic mind and/or racing thoughts. Mentally and emotionally Opal can aid one in inventiveness and creativity and can also help with self expression.