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pitchblende    音标拼音: [p'ɪtʃbl,ɛnd]
n. 沥青油矿

沥青油矿

pitchblende
n 1: a mineral consisting of uranium oxide and trace amounts of
radium and thorium and polonium and lead and helium;
uraninite in massive form is called pitchblende which is
the chief uranium ore [synonym: {uraninite}, {pitchblende}]


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  • Uraninite - Wikipedia
    Uraninite, also known as pitchblende, is a radioactive, uranium -rich mineral and ore with a chemical composition that is largely UO 2 but because of oxidation typically contains variable proportions of U 3 O 8
  • Uraninite: A radioactive mineral and ore of uranium
    Uraninite, also known as pitchblende, is a radioactive mineral and the most important ore of uranium We have uraninite photos, physical properties, and information about geologic occurrence, alteration products, and the role of uraninite in the discovery of radioactivity
  • Pitchblende | Radioactive, Uranium, Thorium | Britannica
    Pitchblende, amorphous, black, pitchy form of the crystalline uranium oxide mineral uraninite (q v ); it is one of the primary mineral ores of uranium, containing 50–80 percent of that element Three chemical elements were first discovered in pitchblende: uranium by the German chemist Martin
  • Pitchblende: Mineral information, data and localities.
    A massive, often globular, possibly impure, variety of Uraninite
  • What Is Pitchblende? (Uraninite) - ThoughtCo
    When learning about the element uranium, the term pitchblende commonly pops up What is pitchblende and what does it have to do with uranium? Pitchblende, also known by the name uraninite, is a mineral comprised mainly of oxides of the element uranium, UO 2, and UO 3 It is the primary ore of uranium The mineral is black in color, like 'pitch'
  • PITCHBLENDE Definition Meaning - Merriam-Webster
    The meaning of PITCHBLENDE is a brown to black mineral that consists of massive uraninite, has a distinctive luster, contains radium, and is the chief ore-mineral source of uranium
  • Uraninite (Pitchblende): The Radioactive Mineral That Changed Science
    Uraninite, also known as pitchblende, is a dense radioactive mineral that transformed science, led to the discovery of radium and polonium, and became the foundation of nuclear energy
  • Uraninite | Properties, Formation, Occurrence - Geology Science
    Uraninite is a mineral that is primarily composed of uranium oxide It is a significant ore of uranium, which is an important element used for nuclear power generation and in the production of nuclear weapons
  • pitchblende | FactMonster
    Pitchblende is greenish, brownish, or black in color, with a pitchy to submetallic luster The uranium yield is from 50% to 80% Uraninite, a closely related ore richer in uranium (uranium dioxide), commonly crystallizes in the cubic system It yields 65% to 80% uranium and has a specific gravity somewhat higher than that of pitchblende
  • Pitchblende - Simple English Wikipedia, the free encyclopedia
    Pitchblende is a radioactive, uranium-rich mineral and ore It has a chemical composition that is largely UO 2, but also contains UO 3 and oxides of lead, thorium, and rare earth elements





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