Search results
Results from the WOW.Com Content Network
An uncut, rough yellow sapphire found at the Spokane Sapphire Mine near Helena, Montana. Sapphire is one of the two gem-varieties of corundum, the other being ruby (defined as corundum in a shade of red). Although blue is the best-known sapphire color, it occurs in other colors, including gray and black, and also can be colorless.
The Coats–Hines–Litchy site (formerly Coats–Hines) is a paleontological site located in Williamson County, Tennessee, in the Southeastern United States.The site was formerly believed to be archaeological, and identified as one of only a very few locations in Eastern North America containing evidence of Paleoindian hunting of late Pleistocene proboscideans. [1]
A rare type of sapphire, padparadscha sapphire, is pink-orange. The name "corundum" is derived from the Tamil-Dravidian word kurundam (ruby-sapphire) (appearing in Sanskrit as kuruvinda). [8] [9] Because of corundum's hardness (pure corundum is defined to have 9.0 on the Mohs scale), it can scratch almost all other minerals.
The Verneuil method (or Verneuil process or Verneuil technique), also called flame fusion, was the first commercially successful method of manufacturing synthetic gemstones, developed in the late 1883 [1] by the French chemist Auguste Verneuil.
Gem quality hibonite has been found only in Myanmar. [73] Red Beryl - discovered in 1940. Red beryl or bixbite was discovered in an area near Beaver, Utah in 1904 and named after the American mineralogist Maynard Bixby. Jeremejevite was discovered in 1883 in Russia and named after its discoverer, Pawel Wladimirowich Jeremejew (1830–1899).
Sapphire#Padparadscha From a merge : This is a redirect from a page that was merged into another page. This redirect was kept in order to preserve the edit history of this page after its content was merged into the content of the target page.
In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...
The Eva site (40BN12) is a prehistoric Native American site in Benton County, Tennessee, in the Southeastern United States.Located along an ancient channel of the Tennessee River, the Eva site saw extensive periods of occupation during the Middle and Late Archaic period (c. 6000-1000 BC).