Agate can be used for....
Confidence + Courage + strength + Calming + Balance + Harmony
A geode is contained within an outer form. When opened, it is hollow with many crystals pointing inward. Geodes hold and amplify energy within themselves. Due to their rounded, cave like shape and numerous terminations, they diffuse the amplified energy, softening the energy but not neutralizing it, allowing it to flow out slowly if required. They are useful for protection and aid spiritual growth. Geodes assist in breaking addictions and are beneficial for an addictive or overindulgent personality.
Geode information is from the book THE CRYSTAL BIBLE 1 By Judy Hall.