Aquamarine is the cyan blue/green variety of a Beryl and has a hardness of 7.5 - 8 on the Mohs hardness scale. It is from the hexagonal crystal system. It is said that some of the metaphysical properties of Aquamarine may include:
Improved communication and public speaking
Enhanced tolerance and tranquility
Water element - connection with water and the spirit of water
Connection to Atlantis and Lemuria
Courage, strength and emotional wellness
Associated with the heart and throat chakras
Great to bring to the beach, waterfalls, streams, on a boatride