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Ruspoli Sapphire: 136.9 carats (27.38 g) Stuart Sapphire: Sri Lanka 104 carats (20.8 g) Blue Tower of London: Bismarck Sapphire: Myanmar: 98.56 carats (19.712 g) Table Blue National Museum of Natural History, Washington James J. Hill Sapphire: 22.66 carats (4.532 g) Cornflower National Museum of Natural History, Washington
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, they occur in other colors, including gray and black, and also can be colorless.
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SAPHIRE is a probabilistic risk and reliability assessment software tool. SAPHIRE stands for Systems Analysis Programs for Hands-on Integrated Reliability Evaluations. The system was developed for the U.S. Nuclear Regulatory Commission (NRC) by the Idaho National Laboratory . Development began in the mid-1980s when the NRC began exploring two ...
Estimated value. Est. US$100 million. Serendipity Sapphire is the world's largest star sapphire cluster. It weighs 510 kilograms (2,600,000 carats). [1] It was found in Kahawatte in the Ratnapura District, Sri Lanka, in July 2021. Its worth is estimated to be up to US$100 million. [1]
Silicon on sapphire ( SOS) is a hetero-epitaxial process for metal–oxide–semiconductor (MOS) integrated circuit (IC) manufacturing that consists of a thin layer (typically thinner than 0.6 µm) of silicon grown on a sapphire ( Al. 2O. 3) wafer. SOS is part of the silicon-on-insulator (SOI) family of CMOS (complementary MOS) technologies.
Star of India. The Star of India is a 563.35- carat (112.67 g) star sapphire, one of the largest such gems in the world. [1] [a] It is almost flawless and is unusual in that it has stars on both sides of the stone. The greyish-blue gem was mined in Sri Lanka [3] and is housed in the American Museum of Natural History in New York City .
Millennium Sapphire. The Millennium Sapphire is a blue sapphire discovered in 1995 in Madagascar, the natural dark–blue gem weighed 89,850 carats (nearly 40 pounds, or 17.97 kilograms). The Millennium Sapphire.