Aquamarine is a type of beryl with a hardness of 7.5 to 8. Its name comes from the Latin (water of the sea) because of its sea water color. It has been used as a good luck talisman by sailors. It is found on every continent, and its color ranges from pale green to deep blue. It is the March birthstone.
Mystic Lore: Intuitive sources say that Aquamarine is the best stone for the fifth chakra, the energy center at the throat, and that it enhances one's communication skills. It is said to be a cooling and calming stone, good for soothing sunburns, fevers and tempers., and to enhance intellectual abilities.