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The Chambersburg Area School District is a public school district located in Franklin County, Pennsylvania. The district encompasses approximately 250 square miles, including the borough of Chambersburg, plus the townships of Hamilton, Greene, Lurgan, and Letterkenny, and a portion of Guilford Township. It operates the following schools: Andrew ...
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
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 .
The front of Chambersburg Area Senior High School. Gov. Josh Shapiro's proposed 2024-25 budget includes an increase of over $1 billion in basic education funding, according to the Department of ...
Cardinal gem. sapphire ruby emerald amethyst diamond. Cardinal gems are gemstones which have traditionally been considered precious above all others. The classification of the cardinal gems dates back to antiquity, and was largely determined by ceremonial or religious use and rarity. [1] The term has largely fallen out of use.
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.
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.
The Black Star of Queensland, also known as the Brimstone of Queensland, named after its nature and place of origin, is a 733-carat (146.6 g) black sapphire, and was the world's largest gem quality star sapphire until The Star of Adam was discovered. The Black Star sapphire is an oval-shaped gemstone cut as a cabochon like all other star sapphires.