pitchblende definition

  • noun:
    • an enormous variety of the mineral uraninite.
    • Naturally-occurring uranium oxide, multiple the mineral uraninite.
    • A pitch-black mineral consisting chiefly associated with oxide of uranium; uraninite. See uraninite.
    • An oxid of uranium, frequently occurring in pitchy black masses, seldom in octahedrons. Also pechblend, pechblende, pechurane, uraninite.
    • it really is a black mineral found mainly inside mines for the Erzgebirge, between Saxony and Bohemia, and until recently known simply due to the fact chief way to obtain oxid of uranium, utilized in staining cup and artwork on porcelain. In it have-been found most of the substances which were observed presenting the property of radioactivity.
    • a mineral comprising uranium oxide and trace levels of radium and thorium and polonium and lead and helium; uraninite in massive kind is named pitchblende the main uranium ore

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