Beryl is a relatively rare mineral composed of beryllium aluminium cyclosilicate. The most well-known varieties of beryl are deep green-colored emeralds, blue aquamarine, and pink morganite. Pure beryl is colorless, but impurities and inclusions cause its diverse colors. Other less well known forms of beryl include heliodor, goshenite, pezzottaite, golden beryl and red beryl, which is the rarest form of beryl. All beryl gemstones are durable enough to be worn as everyday jewelry. They also come in a variety of striking colors, which is another reason they are favored for jewelry.
