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Crystals of beryl, which include aquamarine, begin to form in pegmatite veins and host rock fissures or cavities. Aquamarine crystals grow over long periods, which enables them to take on their distinctive hexagonal prismatic shape. [9] This is a very long process that can take millions of years to form.
Aquamarine. Aquamarine (from Latin: aqua marina, "sea water" [17]) is a blue or cyan variety of beryl. It occurs at most localities which yield ordinary beryl. The gem-gravel placer deposits of Sri Lanka contain aquamarine. Green-yellow beryl, such as that occurring in Brazil, is sometimes called chrysolite aquamarine. [18]
Aquamarine crystals on matrix Faceted aquamarine. Aquamarine - Greek beryllos, Latin beryllus. Revelations 21:20, gives it as the eighth stone of the foundation of the New Jerusalem. Beryl is a stone composed of silica, alumina, and glucina with aquamarine and emerald being the same species of gemstone.
^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue (aquamarine). ^ Florida's state gem, moonstone, was adopted to highlight Florida's role in the United States' Lunar program, which landed the first astronauts on the Moon. [81]
The Dom Pedro aquamarine is the world's largest cut aquamarine gem. It was cut from a crystal originally weighing approximately 60 pounds (27 kg) and measuring almost 2 feet (0.61 m) in length. The stone was mined in Pedra Azul, in the state of Minas Gerais in Brazil around 1980, and named after the Brazilian emperors Pedro I and Pedro II.
Calcite. Manganoan calcite (var.); Caledonite; Canasite; Cancrinite. Vishnevite; Carletonite; Carnallite; Cassiterite; Catapleiite; Cavansite; Celestite; Ceruleite ...
Group of precious and semiprecious stones—both uncut and faceted—including (clockwise from top left) diamond, uncut synthetic sapphire, ruby, uncut emerald, and amethyst crystal cluster. A gemstone (also called a fine gem , jewel , precious stone , semiprecious stone , or simply gem ) is a piece of mineral crystal which, when cut or ...
Aquamarine may refer to: Aquamarine (color), a shade between green and blue; Aquamarine (gemstone), a type of pale-blue to light-green beryl; Aquamarine may also ...