monazite sand

monazite sand
獨居石

English-Chinese dictionary. 2013.

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  • Monazite — General Category Phosphate minerals Chemical formula (Ce,La)PO …   Wikipedia

  • Sand — /sand/; Fr. /sahonnd/, n. George /jawrj/; Fr. /zhawrddzh/ (Lucile Aurore Dupin Dudevant), 1804 76, French novelist. * * * I Mineral, rock, or soil particles that are 0. 0008–0.08 in. (0.02–2 mm) in diameter. Most rock forming minerals are found… …   Universalium

  • Monazite — Monazit Chemische Formel siehe Einzelminerale Mineralklasse Phosphate, Arsenate, Vanadate 8.AD.50 (8. Aufl.: VII/A.15 (Monazit Gruppe)) (nach Strunz) 38.4.3 (Monazit Gruppe) (nach Dan …   Deutsch Wikipedia

  • sand — sandable, adj. sandless, adj. sandlike, adj. /sand/, n. 1. the more or less fine debris of rocks, consisting of small, loose grains, often of quartz. 2. Usually, sands. a tract or region composed principally of sand. 3. the sand or a grain of… …   Universalium

  • monazite — noun Etymology: German Monazit, from Greek monazein Date: 1836 a yellow to red or brown mineral that is a phosphate of thorium and various rare earth elements and occurs especially in sand and gravel deposits …   New Collegiate Dictionary

  • 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

  • thorium processing — Introduction       preparation of the ore for use in various products.       Thorium (Th) is a dense (11.7 grams per cubic centimetre), silvery metal that is softer than steel. It has a high melting temperature of approximately 1,750° C (3,180°… …   Universalium

  • Thorium — (pronEng|ˈθɔːriəm) is a chemical element with the symbol Th and atomic number 90. As a naturally occurring, slightly radioactive metal, it has been considered as an alternative nuclear fuel to uranium.CharacteristicsWhen pure, thorium is a… …   Wikipedia

  • Didymium — (Greek: twin element) is a mixture of the elements praseodymium and neodymium. It is used in safety glasses for glassblowing and blacksmithing, especially when a gas (propane) powered forge is used, where it provides a filter which selectively… …   Wikipedia

  • Holmium — (pronEng|ˈhoʊlmiəm) is a chemical element with the symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a relatively soft and malleable silvery white metallic element, which is stable in dry air at room temperature. A rare… …   Wikipedia

  • Mischmetal — Carl Auer von Welsbach Mischmetal (from German: Mischmetall mixed metal ) is an alloy of rare earth elements in various naturally occurring proportions. It is also called cerium mischmetal, rare earth mischmetal or misch metal. A typical… …   Wikipedia

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