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Definition of "zircons" []

  • Plural form of zircon. (noun)

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Use "zircons" in a sentence
  • "University of Wisconsin-Madison geologist Takayuki Ushikubo and colleagues used a sophisticated new instrument called an ion microprobe to analyze isotope ratios of the element lithium in zircons, the oldest known materials on Earth, from the Jack Hills in western Australia."
  • "By comparing these chemical fingerprints to lithium compositions in zircons from continental crust and primitive rocks similar to the Earth’s mantle, they found evidence that the young planet already had the beginnings of continents, relatively cool temperatures and liquid water by the time the Australian zircons formed."
  • "Certain crystals called zircons, obtained from drilling into very deep granites, contain uranium which has partly decayed into lead."