Chalcedony: It is a cryptocrystalline form of silica ( Quartz ), It is not scientifically its own mineral species, but rather a form of Quartz in microcrystalline form.Chalcedony is a birthstone for the zodiac signs of Cancer, Virgo, Sagittarius and Aquarius. Chalcedony is a nurturing stone that promotes brotherhood and good will. It absorbs negative energy. It brings the mind, body, emotions and spirit into harmony. Chalcedony instills feelings of benevolence and generosity. It alleviates hostility and transforms melancholy into joy. Eases self-doubt. Creates openness and enthusiasm. Absorbs and dissipates negative thoughts, emotions and bad dreams.
It is believed Chalcedony improves mineral assimilation and combats mineral buildup in veins. Lessens the effects of dementia and senility. It increases physical energy. Heals the eyes, gallbladder, bones, spleen, blood and circulatory system.