Below you can find the Anthracite the highest grade of this is made almost entirely of carbon Jeopardy Words Answer. The answer to Anthracite the highest grade of this is made almost entirely of carbon has 4 letters. This clue belongs to the What grade did you get? category and is part of Jeopardy Word Level 2472. If you scroll near the bottom you will find other clues and answers part of level 2472