Autunite definition

ō-tŭnīt, ôtə-nīt
A yellowish, fluorescent minor ore of uranium with the composition Ca(UO2 )2 (PO4 )2 · 10–12H2 O.
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A hydrous, radioactive, tetragonal mineral, Ca(UO2)2(PO4)210-12H2O: it is an ore of uranium.
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(mineralogy) A yellow mineral with tetragonal crystals, Ca(UO2)2(PO4)2·10-12H2O.
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Origin of autunite

  • After Autun , a city of east-central France

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