Rock which is mainly corundum, often used in powdered form

Let's find possible answers to "Rock which is mainly corundum, often used in powdered form" crossword clue. First of all, we will look for a few extra hints for this entry: Rock which is mainly corundum, often used in powdered form. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.