Noun: pitchblende 'pich,blend
- 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
"pitchblende was a key source of radium for Marie Curie's research";
- uraninite
Derived forms: pitchblendes
Type of: uranium ore
Encyclopedia: Pitchblende