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Clue: "Rare-earth oxide"
"Rare-earth oxide" is a New York Times crossword puzzle clue that we have seen 1 time.
Possible answer
YTTRIA
Likely related crossword puzzle clues
Powder used in lasers
Oxide used in picture tubes
Oxide used in television tubes
Powder used in television tubes
Recent usage in crossword puzzles
New York Times -
November 4, 2000