There are two birthstones for March
Aquamarine
Modern-Day Birthstone
Aquamarine is most often light in tone and ranges from greenish blue to blue-green; the color is usually more intense in larger stones. This gem stone was belived to protect sailors and guarantee a safe voyage.
Aquamarine is also known for relieving fear, calming nerves and bringing mental clarity.
Chemical Formula:
Be2Al2SiO6
Color:
Greenish-Blue, Light Blue, Sky Blue
Hardness:
7.5-8
Crystal System:
Hexagonal
&
Bloodstone
Traditional Birthstone
Bloodstone is dark green with speckled red or brown spots formed by iron oxide impurities. The spots look similar to blood, hence the name. Spots vary from sparse to almost non-existent. This ancient stone was used by the Babylonians to make seals and amulets. It was believed to have healing powers, especially for blood disorders. This stone is sometimes called Blood Jasper or Heliotrope.
Chemical Formula:
SiO2
Color:
Red, Green, Brown
Hardness:
7
Crystal System:
Hexagonal
For more information visit the American Gem Society website.