You may be board to know that this natural abrasive is second only to diamonds in hardness

Below you can find the You may be board to know that this natural abrasive is second only to diamonds in hardness Jeopardy Words Answer. The answer to You may be board to know that this natural abrasive is second only to diamonds in hardness has 5 letters. This clue belongs to the Rocks & minerals category and is part of Jeopardy Word Level 312. If you scroll near the bottom you will find other clues and answers part of level 312