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pitchblende

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pitch·blende  (pchblnd)
n.
A massive variety of the mineral uraninite.

[Partial translation of German Pechblende : Pech, pitch + Blende, blende; see blende.]

pitchblende [ˈpɪtʃˌblɛnd]
n
(Earth Sciences / Minerals) a blackish mineral that is a type of uraninite and occurs in veins, frequently associated with silver: the principal source of uranium and radium. Formula: UO2
[partial translation of German Pechblende, from Pech pitch2 (from its black colour) + blende]

pitchblende  (pchblnd)
A brown to black, often crusty, cubic mineral that is a principal ore of uranium. It is highly radioactive. Chemical formula: UO2.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.pitchblende - 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
atomic number 92, uranium, U - a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
uranium ore - any ore from which uranium can be extracted
Translations
pitchblende [ˈpɪtʃblend] Npec(h)blenda f


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The Millennium deposit''s ore mineralogy is comprised of pitchblende, with lesser amounts of coffinite and uraninite.
LaBine found pitchblende on the lake's eastern shore.
Collecting crystals is a popular Swiss hobby, and many displays include minerals -- such as zircon, coffinite, carnotite, monazite, brannerite, titanite and pitchblende -- containing radon-emitting uranium or thorium.
 
 
 
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