Morganite Gemstone. There are other members of the beryl family much less known then their famous cousins. Pale green beryl is essentially a green version of aquamarine. Pink and peach beryl, colored by manganese impurities, is known as morganite. Morganite was discovered late 1800's and is named after gem collector extraodinaire J.P. Morgan. Golden Beryl is colored by uranium impurities, and is known as heliodor. The rarest variety is red beryl, also known as "bixbite", and also derives it color from manganese impurities. The colorless variety of beryl known as goshenite is little used as a gemstone, however it played a very important role in history. In antiquity beryl was used for the lenses of spectacles - and was the source of the German word for spectacles, "brille". Goshenite is very brilliant, and has been used occasionally as a diamond substitute. In fact the word brilliance is probably derived from the ancient greek word for beryl, "berullos", which means crystal. Both pale green beryl, golden beryl, and pink beryl; as well as aquamarine and emerald, are found in Russia..