February’s birthstone, amethyst, is the violet or purple variety of quartz. The gemstone’s name comes from the Greek amethustos, meaning not intoxicated, a reference to the ancient belief that the stone could ward off drunkenness. The ancient Greeks and Romans wore amethysts and made drinking vessels of them for this reason. The stone is associated with a number of other superstitions as well, being regarded as a love charm, a potent sleep aid, and what else? Discuss