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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, they occur in other colors, including gray and black, and also can be colorless. A pinkish orange variety of sapphire is called padparadscha .
Project Sapphire was a successful 1994 covert operation of the United States government in cooperation with the Kazakhstan government to reduce the threat of nuclear proliferation by removing nuclear material from Kazakhstan as part of the Cooperative Threat Reduction Program, which was authorized by the Soviet Nuclear Threat Reduction Act of 1991.
Characteristics and classification. A collection of gemstone pebbles made by tumbling the rough stones, except the ruby and tourmaline, with abrasive grit inside a rotating barrel. The largest pebble here is 40 mm (1.6 in) long. The traditional classification in the West, which goes back to the ancient Greeks, begins with a distinction between ...
The Star of Adam is an oval-shaped blue star sapphire, currently the largest star sapphire in the world. It weighs 1,404.49 carats (280.898 g; 9.9084 oz). Prior to its discovery in 2015, the Black Star of Queensland, weighing 733 carats (146.6 g), was the largest star sapphire gem in the world.
Jumpstart 4th Grade. Jumpstart 4th Grade refers to two very different educational products created by Knowledge Adventure : JumpStart Adventures 4th Grade: Haunted Island. JumpStart Adventures 4th Grade: Sapphire Falls.
Laverstoke Mill is a former paper mill located on the River Test in Laverstoke near Overton, Hampshire, England. The mill complex contains three Grade II listed buildings: the Mill House, Mill Cottages, and the Glazing House. After a major refurbishment between 2011 and 2013, the mill is now the distillery and visitor centre for Bombay Sapphire ...
GPL. Website. portal .p-grade .hu. The P-GRADE Grid Portal was software for web portals to manage the life-cycle of executing a parallel application in grid computing. [1] It was developed by the MTA SZTAKI Laboratory of Parallel and Distributed Systems (LPDS) at the Hungarian Academy of Sciences, Hungary, from around 2005 through 2010.
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