Answer | Crossword Clue |
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uraninite | uranium dioxide, the major ore of uranium, found most frequently in botryoidal form as pitchblende |
uraninites | URANINITE, uranium dioxide, the major ore of uranium, found most frequently in botryoidal form as pitchblende |
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 |