The birthstone for March is the lovely light blue stone, the Aquamarine. Many people get this stone mixed up with the Topaz, however, the Aquamarine is a lot lighter blue in color than the Topaz. It exists in many shades of blue, from pale versions to the color of the deep blue sky, and some stones are tinged with green — it owes its color to the presence of iron. Deeper colored aquamarines have the highest value.
The Aquamarine, is a form of Beryl, the same mineral family that the Emerald belongs to. The highest quality of Aquamarine is very clear, with fewer inclusions than emerald, but aquamarine that is less clear can be just as beautiful.
Aquamarine is a durable gemstone, and is rated at 7.5 on the Moh’s scale (compared to diamond at 10).
Where it comes from – Much of the world’s supply of Aquamarine comes from Brazil, with one particularly vivid blue type called Santa Maria because it originates from the country’s Santa Maria de Itabira mine. Aquamarines are also found in Africa, the Middle East, Mexico and even the United States.
Did you know? – The Aquamarine has long been considered a lucky stone, especially by sailors, who carried it to keep them safe at sea. It is said to bring peace and calming to its owner, relieving stress and enhancing intuition. Crystal healers use aquamarine to harmonize diseased areas of the body.
Aquamarine alternates with bloodstone as the birthstone for March.
(Some facts taken from – jewelry.about.com)