People born between February 19 and March 20 of the Gregorian calendar come under this star sign. Amethyst is the birthstone for February while Aquamarine and Bloodstone are the birthstones for March. Amethyst is a widely used stone of violet hue. It is a protective stone which shields the wearer against all kinds of problems related to stress and psychic. It is believed to help overcome several types of addiction. It maintains the hormonal balance in the body and strengthens the immunity system. It also reduces pain and inflammation and acts as a blood purifier. Aquamarine has a calming effect on the wearer and promotes courage and tolerance. It is thought to prevent miscarriage during pregnancy and cures eye defects. It has been found to be effective in throat problems and helps maintain hormonal balance in the body. Bloodstone, also known as Heliotrope, is well known for its healing power. It promotes vitality, compassion and idealism and is also believed to be a detoxifier. It can assist in the fight against infections and swellings and is good for the circulatory system as well.