This mineral is the most stable form of carbon though not when you sharpen your pencil too fine

Below you can find the This mineral is the most stable form of carbon though not when you sharpen your pencil too fine Jeopardy Words Answer. The answer to This mineral is the most stable form of carbon though not when you sharpen your pencil too fine has 8 letters. This clue belongs to the Carbon category and is part of Jeopardy Word Level 2099. If you scroll near the bottom you will find other clues and answers part of level 2099