SINCE 1828
autunite
noun
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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