noun au·tun·ite \ō-ˈtə-ˌnīt, ˈ-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

Origin of AUTUNITE

Autun, town in France
First Known Use: circa 1852


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