A form of beryl.

The gemstone Beryl is the Star Sign for Scorpio and the Talismanic Stone for Sagittarius. See the ancient birthstone tables for additional references to this and other ancient birthstones.

Pure beryl is colorless, but it also occurs in a variety of colors including green, yellow, greenish-yellow, blue to blue-green, red, colorless and pink when tinted by impurities. The pink variety is known as Morganite, red is very rare and known as Bixbite, Goshenite is the colorless form. Golden beryl is a yellow-green and called Heliodor. Aquamarines and emeralds are actually a variety of beryl. Beryls are some of the most valuable of all the colored gemstones.

Dark blue beryls are available today that are actually light colored beryls treated with radiation, much in the same manner as blue topaz.

Beryl is a 7.5 to 8 on the Mohs scale and is found in Colombia, Africa, Brazil, Russia, Pakistan, and California.

The name is from ancient Greek, beryllos, and means "precious blue-green color".