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Sapphire is a gemstone, a variety of the mineral corundum, an aluminium oxide It is typically ... Gray is the normal saturation modifier or mask found in blue sapphires. ..... Thin sapphire wafers were the first successful use of an insulating substrate upon which to deposit silicon to make the integrated circuits known as silicon ...


Dec 30, 2016 ... The production of gem-quality sapphires in the United States is not new or recent. In 1865, the first U.S. sapphires were found in the gravels of ...


Fancy colored Montana Sapphires, heat-treated. Sapphires were first found in Montana in 1865 by early gold prospectors mining the Missouri river near Helena .


The Sapphire is one of the earliest gems known to man, Sapphires are found in ... attributed to Sapphires were that they preserved Chastity, discovered Fraud ...


Dec 23, 2006 ... Sapphire is found in only a few locations in the world. ... The rare, fine blue sapphires of Pailin, Cambodia were also very highly regarded .... It was first sold by Sotheby's in 1988 for $2.82 million and then sold by Christie's in ...


Aug 19, 2015 ... Blue sapphires were first discovered in the Padar region of Kashmir in the 1880s. Kashmir stones were usually of exceptionally fine quality.


Nov 8, 2011 ... In 1880, ruby and sapphire was discovered but in 1801, ... together with Jannettez while they were still at the Paris Museum of Natural History.


Going way back in time, Sapphires (excluding blue) were often called the same name as a popular ... Sapphire was first synthesized in 1902. ... Padparadschah - Orange-pink variety of Sapphire that is found in Sri Lanka; highly regarded and ...


Mar 7, 2013 ... T.D. La Touche is dispatched to the mines to undertake the first .... Exactly when sapphires were first discovered in Kashmir is unknown.