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au·tun·ite | \ ō-ˈtə-ˌnīt 
, ˈȯ-tə- \
, ˈȯ-tə- \Definition of autunite
: a radioactive usually lemon-yellow calcium phosphate mineral that occurs in tabular crystals and in scales and that is an ore of uranium
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Time Traveler for autunite
The first known use of autunite was circa 1852
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