| Answer | Crossword Clue |
|---|---|
| cheralites | CHERALITE, a radioactive mineral rich in thorium and uranium |
| cheralite | a radioactive mineral rich in thorium and uranium |
| autunite | a radioactive usually lemon-yellow calcium phosphate mineral that occurs in tabular crystals and in scales and that is an ore of uranium |
| uraninite | mineral, probably originally uranium dioxide, UO2, but altered by radioactive decay, and usually containing uranium trioxide, lead, radium, and helium, occurring in several varieties, including pitchblende: the most important ore of uranium |
