Yellow Opal is a wonderful healing crystal. It lends its wonderful high vibration to help strengthen the solar plexus and lighten the feelings. It is great to use to elevate one's spirit; to feel positivity flow through them and get inspired with taking new actions and having new ideas. It's a wonderful crystal to use in winter months when the energy of yellow is scarce in nature.  It makes a wonderful gift for those who need an uplifting vibration.