Your birthstone is the Peridot. Peridot is a beautiful green gemstone that is often mistaken for an emerald or other green gems. Many gems in church and royal treasures thought to be emeralds were actually Peridot.
Care should be taken with this gemstone to avoid scratches and protect from blows. Peridot is sensitive to rapid temperature changes and should never be steam cleaned. Clean with a mild dish soap and avoid ultrasonic cleaning.