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rare-earth garnet

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  • Rare earth element — Rare earth ore, shown with a United States penny for size comparison These rare …   Wikipedia

  • Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

  • garnet — garnetlike, adj. /gahr nit/, n. 1. any of a group of hard, vitreous minerals, silicates of calcium, magnesium, iron, or manganese with aluminum or iron, varying in color: a deep red transparent variety is used as a gem and as an abrasive. 2. a… …   Universalium

  • Garnet — /gahr nit/, n. Henry Highland, 1815 82, U.S. clergyman and abolitionist. * * * Any of a group of common silicate minerals with identical crystal structure but highly variable chemical composition. Garnets are most often found in metamorphic rocks …   Universalium

  • Garnet — For other uses, see Garnet (disambiguation). Garnet General Category Nesosilicate Chemical …   Wikipedia

  • Indian Rare Earths Limited — On August 18 1950, Indian Rare Earths Limited (IREL) was incorporated as a private limited company jointly owned by the Government of India and Government of Travancore, Cochin with the primary intention of taking up commercial scale processing… …   Wikipedia

  • Yttrium aluminium garnet — YAG redirects here. For the IATA airport code see Fort Frances Municipal Airport. For the YMCA sponsored program see YMCA Youth and Government. Yttrium aluminium garnet General Category synthetic mineral Chemical formula Y3Al …   Wikipedia

  • Yttrium iron garnet — (YIG) is a kind of synthetic garnet, with chemical composition Yttrium3Iron2(FeOxygen4)3, or Y3Fe5O12. It is a ferrimagnetic material with Curie temperature 550 K.In YIG, the five iron(III) ions occupy two octahedral and three tetrahedral sites,… …   Wikipedia

  • Yttrium — (pronEng|ˈɪtriəm) is a chemical element with symbol Y and atomic number 39. It is a silvery metallic transition metal chemically similar to the lanthanoids and has historically been classified as a rare earth element. Yttrium is almost always… …   Wikipedia

  • Lutetium — (pronEng|ljuːˈtiːʃiəm) is a chemical element with the symbol Lu and atomic number 71. A silvery white rare metal, lutetium is the heaviest member of the rare earth group.Parker, Sybil P., ed. Dictionary of Scientific and Technical Terms. 3rd ed.… …   Wikipedia

  • Neodymium — praseodymium ← neodymium → promethium ↑ Nd ↓ U …   Wikipedia

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