Emerald says: "§ 23.23(c) It is unfair or deceptive to use the word "laboratory-grown", "laboratory-created", "[manufacturer name]-created", or "synthetic" with the name of any natural stone to describe any industry product unless such industry product has essentially the same optical, physical, and chemical properties as the stone named." Emerald is regarded as the traditional birthstone for May as well as the traditional gemstone for the astrological signs of Cancer. One of the quainter anecdotes about emeralds was told by the 16th-century historian Brantôme, who referred to the many impressive emeralds the Spanish under Cortez had brought back to Europe from Latin
Short-tailed emerald Short-tailed emerald The short-tailed emerald ("Chlorostilbon poortmani") is a species of hummingbird found in the Andes of Colombia and Venezuela. It has also been called Poortman's emerald hummingbird. The binomial name was given by Jules Bourcier (1797–1873), a French naturalist and expert on hummingbirds. The short-tailed emerald is found in clearings and at borders of forest, woodland, open areas with scattered trees, and in coffee plantations at altitudes of up to in the Andes of central Colombia to far western Venezuela. The bird has a wide range, estimated at 64,000 square kilometres. The global population and population trends have not