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Oxide In Rubies And Sapphires Crossword Clue

There is 1 exact and 121 possible answers.
We've checked our database and believe the answer is ALUMINA which was last seen in the New York Times crossword.
Check other possible answers below.
We think the answer to this crossword clue is: ALUMINA

Best Possible Answers

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RankLettersAnswerClue
199%7Exact Match!
257%9 Diamonds, rubies, and sapphires
357%6 Diamonds, sapphires, and rubies

About This Clues Answer

We think the answer is "ALUMINA" which means:

    noun
  • • Any of various forms of aluminum oxide occurring naturally as corundum

An example sentence would be:

  • • "The high purity alumina is used for making synthetic gemstones."
  • • "The alumina coating on the surface helps protect the metal from corrosion."

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Clue Last Found In...

Source #Number Answer
New York Times07 Jun 2016 Across 61
This clue was last seen in the publications above.

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