Pitchblende meaning

pĭchblĕnd
A massive variety of the mineral uraninite.
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A brown to black, radioactive, massive form of uraninite: pitchblende is the chief ore of uranium and radium.
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A brown to black, often crusty, cubic mineral that is a principal ore of uranium. It is highly radioactive. Chemical formula: UO2.
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(mineralogy) Naturally-occurring uranium oxide, a variety of the mineral uraninite.
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Origin of pitchblende

  • Partial translation of German Pechblende Pech pitch Blende blende blende

    From American Heritage Dictionary of the English Language, 5th Edition

  • From German Pechblende, from Pech (“pitch") + Blende (“blende").

    From Wiktionary