Aquamarine is a beryl with a hexagonal crystal structure and a chemical formula of Be3Al2Si6O18, a beryllium aluminium silicate mineral. It has a specific gravity of 2.68 to 2.74 and a Mohs hardness of from 7.5 to 8.Aquamarine aids clear vision,excellent balancer on all levels.It also a very calming stones.Beside that,aquamarine also can help in purifying minds,body and spirit.
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