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X_______
Definitions
a brown-to-yellow mineral that is a phosphate of yttrium in crystalline form
Word origin
From Ancient Greek κενός (kenós, “vain”), τιμή (timḗ, “honour”), because the yttrium in the mineral was originally thought to be a new element.
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
No curated clues for xenotime yet.