For the lucky people with March birthdays, two birthstones are associated with this early spring month: aquamarine and bloodstone. The Aquamarine is thought to bring happiness and quicken the intellect. They include increasing strength, giving invisibility, and preserving health and youth. In modern times, many believe the bloodstone birthstone to be a lucky charm, as it is prized by athletes and others who want to grow their strength. Even today in India, fine bloodstones may be crushed into a powder and used as an aphrodisiac.