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[1] Amethyst is relatively common in the Canadian provinces of Ontario and Nova Scotia. The largest amethyst mine in North America is located in Thunder Bay, Ontario. [14] Amethyst is the official state gemstone of South Carolina. Several South Carolina amethysts are on display at the Smithsonian Museum of Natural History. [21]
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.
The first foundation was jasper: the second, sapphire: the third, a chalcedony: the fourth, an emerald: The fifth, sardonyx: the sixth, sardius: the seventh, chrysolite: the eighth, beryl: the ninth, a topaz: the tenth, a chrysoprasus: the eleventh, a jacinth: the twelfth, an amethyst (Latin: "primum iaspis secundus sapphyrus tertius ...
Emerald of Saint Louis, [5] 51.60 carats cut; discovered in Austria, probably Habachtal, resides in the National Museum of Natural History, Paris Gachalá Emerald [ 6 ] Mogul Mughal Emerald , 217.80 carats cut; mined in Colombia and cut in the Mughal empire in Hijri year 1107 (1695–1696), resides in the Museum of Islamic Art, Doha , Qatar [ 7 ...
Prasiolite (also known as green quartz, green amethyst or vermarine) is a green variety of quartz. Since 1950, almost all natural prasiolite has come from a small Brazilian mine, [citation needed] but it has also been mined in the Lower Silesia region of Poland. Naturally occurring prasiolite has also been found in the Thunder Bay area of ...
The Jones Diamond, also known as the Punch Jones Diamond, The Grover Jones Diamond, or The Horseshoe Diamond, was a 34.48 carat (6.896 g) alluvial diamond found in Peterstown, West Virginia by members of the Jones family. It remains the largest alluvial diamond ever discovered in North America.
A map may prove that Marco Polo discovered America more than two centuries before Christopher Columbus. A sheepskin map, believed to be a copy of the 13th century Italian explorer's, may indicate ...
For many years, the source of amazonite's color was a mystery. [20] Some people assumed the color was due to copper because copper compounds often have blue and green colors. [ 20 ] A 1985 study suggests that the blue-green color results from quantities of lead and water in the feldspar. [ 20 ]