Polished Heart of blue chalcedony agate also known as orca stone with white to grey, greyish-blue to nearly black color patterns, hand polished to a smooth mirror finish. Chalcedony is a nurturing stone that promotes brotherhood and goodwill. 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.