Blue Agate is a very calming and soothing stone that can dispel fear, and impart courage, energy and strength, traits which increase self-confidence.It is also known as a good luck stone. As a stone of harmony, one of the things agate does is balance yin/yang energy.Geodes are a type of natural rock formation that contains a cavity lined with crystals or another type of mineral matter. They are formed as a hollow bubble inside of a layer of rock which was created by volcanic forces or chemical precipitation. The word Geode comes from the Greek term, Geoides, which means Earth-like. In the healing world, geodes are strange phenomena to many and hold a meaning that assists with harmony and creativity from a metaphysical perspective.