A violet-toned quartz, this semi-precious gem is the birthstone for February. Its name comes from the ancient Greek word for “not intoxicating,” since Amethyst was believed by the Greeks to protect the wearer from intoxication. For this reason, ancient Greeks and Romans drank out of Amethyst chalices. Medieval soldiers also believed that Amethyst amulets would protect them in battle, keeping them cool, calm and collected and helping to heal any injuries they might incur. Today’s Amethyst come in a range of purple shades with varying amounts of red and blue, from a light pinkish to a dark violet. Most Amethyst is mined from Siberia, Sri Lanka, Brazil and the Far East; the shade of the quartz largely depends on its source.