
1) Lead mineral 2) Uranium mineral
Found on
https://www.crosswordclues.com/clue/curite

Curite is a lead uranium oxide mineral with formula: Pb3(UO2)8O8(OH)6·3(H2O). It is named after the physicists Marie and Pierre Curie, who are both known for their work on radioactivity. The type locality is the Shinkolobwe Mine. ...
Found on
http://en.wikipedia.org/wiki/Curite

a radioactive uranium mineral, PbUO&syl;4HO, with adamantine luster, occurring as reddish-brown to deep-yellow needle-shaped crystals, formed by alteration of uraninite.
Found on
https://www.infoplease.com/dictionary/curite
No exact match found.