Also called heliotrope, bloodstone is a form of chalcedony that includes opaque mossy greens and brick reds in an agate base. Bloodstone is associated with the zodiac signs Aries and Pisces. This connects the stone to the months of February, March, November and December. Intrinsic Trading bloodstone works on your circulatory system: strengthening and toning veins and heart, leading to a long, healthy life. It is also associated with "getting your blood up"--the infusion of a person with courage and strength of purpose. Bloodstone is a powerful healing stone that removes blockages and negative energy. In the Greek and Roman mythology, they carried bloodstone with them during athletic events to boost strength and increase chances of victory.