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Emeralds occur in hues ranging from yellow-green to blue-green, with the primary hue necessarily being green. Yellow and blue are the normal secondary hues found in emeralds. Only gems that are medium to dark in tone are considered emeralds; light-toned gems are known instead by the species name green beryl. The finest emeralds are ...
In 1969, an emerald of 1,438 carats (0.2876 kg) was uncovered, the largest yet found in North America. The stone was named the Stephenson Emerald in honor of John A. D. Stephenson, a late 19th-century collector instrumental in the discovery of the first North Carolina emerald and the first world discovery of hiddenite.
Rare "trapiche" emeralds are found in Colombia, distinguished by ray-like spokes of dark impurities. Zambia is the world's second biggest producer, with Kagem mine being the world's largest emerald mine [ 11 ] responsible for 25–30% of the world's production of gem-quality stones. [ 12 ]
Gachalá Emerald – 858 carat emerald, found in Gachalá in 1967; Hooker Emerald Brooch – brooch made from a Colombian emerald from an unknown mine, possibly Muzo; Fura Emerald – the second-biggest emerald in the world, with 2.2 kilograms (4.9 lb) or 11,000 carat, found in Muzo, in 1999; Tena Emerald – the most valuable emerald in the ...
This is a list of gemstones, organized by species and types. Minerals ... Emerald. Trapiche emerald (var.) Goshenite; Golden beryl; Heliodor; Morganite; Red beryl ...
Many gems are crystals which are classified by their crystal system such as cubic or trigonal or monoclinic. Another term used is habit, the form the gem is usually found in. [12] For example, diamonds, which have a cubic crystal system, are often found as octahedrons. [13] Gemstones are classified into different groups, species, and varieties.
The Bahia Emerald is one of the largest emeralds and contains the largest single crystal ever found. The stone, weighing approximately 379 kg (836 lbs) [1] (approximately 189,600 carats) originated from Bahia, Brazil; its emerald crystals embedded in black schist.
The community in which the gemstones were first found was later renamed "Hiddenite". During the heyday of hiddenite mining in the 1880s and 1890s it was also known as "lithia emerald". Hidden recognized the value of the emeralds and the potential of the new gemmy green spodumene.