The February birthstone, amethyst, is a beautiful and unique gemstone. It is a type of quartz, and ranges in color from pale lilac to deep purple. Amethyst is believed to bring courage, inner strength, and clarity of mind to the wearer. Its name is derived from the Greek word "amethystos," which translates to "not intoxicated," and it was once believed to protect the wearer from drunkenness. Amethyst has long been used to adorn jewelry and decorate homes, and is a popular choice for engagement rings.