Below you can find the Of the 3 main groups of rocks this one is formed directly from magma Jeopardy Words Answer. The answer to Of the 3 main groups of rocks this one is formed directly from magma has 7 letters. This clue belongs to the Geology category and is part of Jeopardy Word Level 2239. If you scroll near the bottom you will find other clues and answers part of level 2239