Aquamarine- (Beyrl)- composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2(SiO3)6. ....The pale blue color of aquamarine is attributed to Fe2+ , hardness of 7.5–8, Crystal system Hexagonal
Rare Pink Emeralds - wow. A pink emerald (or pink beryl) is actually Morganite. The term “pink emerald” is not accepted by GIA as they feel that it is a misleading term. Both emerald and morganite are varieties of the mineral beryl. Morganite is a beautiful gemstone in its own right and GIA feels it should be referred to as morganite or pink beryl.