Fourth sign of the Zodiac, June 22nd to July 23rd. Ruled by the Moon; correct metal, Silver. Those born under Cancer's influence were supposed to be keen observers, imaginative, strong willed, reliant, tenacious, imressionable, brilliant, reserved, exacting, and sometimes over anxious. The Cancer stones are the emerald, agate, and chalcedony. The emerald was most highly esteemed in ancient times, was believed to possess great healing powers, and to be benficial to the eyes. Emerald talismans were worn to invode eloquence, courage, protection from sickness, and by seamen to guard them from perils at sea. Emeralds were supposed to turn pale at the approach of danger.