A cryptocrystalline form of silica. Promotes brotherhood and good will. Absorbs negative energy. Brings the mind, body, and spirit into harmony. Eases self-doubt. Creates openness and enthusiasm. Dissipates negative thoughts, emotions and bad dreams. Combats mineral buildup in veins.  Lessens the effects of dementia. Increases physical energy.  Heals the eyes, gallbladder, bones, spleen, blood and circulatory system. SiO2 -Lustrous, transparent to translucent white, red greyish, blue, brown, black, gold/yellow etc.; Hardness 7; Locality Texas, USA and other parts of the world.