uranium vs pitchblende

uranium and pitchblende both are nouns.

Word	Noun	Adjective	Verb	Adverb
uranium	Yes	No	No	No
pitchblende	Yes	No	No	No

uranium (noun)	pitchblende (noun)
a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons	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