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
Western Stone of Wisconsin–Eau Claire, performed GPR measurements to determine the depth of the stone. The conclusion of his team was that its depth ranges from approximately 1.8 to 2.5 metres (5.9 to 8.2 feet). Western Stone The Western Stone is a monolithic stone ashlar block forming part of the lower level of the Western Wall in Jerusalem. This largest stone in the Western Wall is visible within the Western Wall Tunnel. With an estimated weight of 517 tonnes (570 short tons), it is one of the largest building blocks in the world. The stone, located in the wall section north of