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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.
Aquamarine can mostly be found in granite pegmatites. [6] It can also be found in veins of metamorphic rocks that became mineralized by hydrothermal activity. [5] Dom Pedro aquamarine in the National Museum of Natural History, Washington, D.C. The largest known example is the Dom Pedro aquamarine found in Pedra Azul, Minas Gerais, Brazil, in ...
Samarian Spinel, the world's largest spinel; Menshikov Ruby, the world's second largest spinel set on top of the Great Imperial Crown of Russia; Timur Ruby, believed to be a ruby until 1851, hence its name; Black Prince's Ruby, the famous spinel mounted on the Imperial State Crown of the United Kingdom
The Cullinan Diamond is the largest gem-quality rough diamond ever found, [2] weighing 3,106 carats (621.20 g), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the owner of the mine. In April 1905, it was put on sale in London, but despite considerable interest, it was still ...
There, visitors can view pieces like the largest fossilized poo by a carnivorous animal, which measures 67.5 centimeters (26.6 inches) by 15.7 centimeters (6.2 inches) and likely came from a ...
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]
The largest diamond found in more than a century has been unearthed at a mine in Botswana, and the country's president showed off the fist-sized stone to the world at a viewing ceremony Thursday.
Though the findings made by Fry's group are incredible, there are anecdotal reports from the Huaorani people of other anacondas in the area "measuring more than 7.5 meters long (24.6 feet) and ...