Birthstone for the zodiac signs of Aries and Leo, Aventurine is a gemstone for the heart chakra. It is a stone of prosperity, reinforces leadership qualities and decisiveness. It Aids in seeing alternatives and possibilities, calms anger and irritation, promotes feelings of well-being. Aventurine balances male-female energy by encouraging regeneration of the heart. It balances blood pressure, stimulates metabolism, lowers cholesterol and heals lungs, sinuses, heart, muscular and urogenital systems.