Aquamarine, Emerald, Goshenite
Aquamarine is a sky-blue to sea-green gem variety of Beryl.
Emeralds are the green member of the Beryl mineral family. They are found in igneous, metamorphic, and sedimentary rocks in a small number of locations worldwide. Emeralds have been one of the most desirable and valuable colored stones for over 5000 years.
Colorless Beryl is called Goshenite. It was originally discovered in Goshen, Massachusetts. Pure Beryl is colorless. Since the color varieties of Beryl are created by impurities, Goshenite could be thought of as the purest variety of Beryl.