Found 2 items, similar to Uraninite.
English → English (WordNet)
Definition: uraninite
uraninite
n : a mineral consisting of uranium oxide and trace amounts of
radium and thorium and polonium and lead and helium;
uraninite in massive form is called pitchblende which is
the chief uranium ore [syn:
pitchblende]
English → English (gcide)
Definition: Uraninite
Uraninite
\U*ran"i*nite\, n. (Min.)
A mineral consisting chiefly of uranium oxide with some lead,
thorium, etc., occurring in black octahedrons, also in masses
with a pitchlike luster; pitchblende.
[1913 Webster]