Glittering Quartz Crystals cover varying shades of blue Brazilian Agate. With a prominent agate eye, adding a stunning shape to the geode cavity. Natural edges and back. Agate is a form of banded Chalcedony and a member of the Quartz family. Delicate in appearance Agate is actually quite strong and therefore stabilizing. It is excellent in balancing physical emotional and intellectual energies by harmonizing the positive and negative.