Crossword puzzle clue "red corundum"

Here are the possible solutions for red corundum clue

Answer
Clue
Relevancy
ruby
Clue
Red variety of corundum
Red corundum
alumina
Clue
Corundum.
Definition
an oxide of aluminum, also ALUMIN, ALUMINE
emery
Clue
Corundum
Corundum.
Abrasive that's largely corundum
Variety of corundum
It's mostly corundum
Definition
to coat with emery (a polishing powder)

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