Crossword clues for the word: CALCIUM The word CALCIUM has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for CALCIUM Showing 1 to 9 of 9 results Clue(s) Bone-building element Chemical element Element #20 Element found in middle of arcade? Element taken in supplements Metallic element Mineral needed to build strong teeth and bones Most common mineral in the human body Silvery-white mineral