The clue "Most volcanic rock" last appeared in the USA Today crossword on January 6, 2019. The correct answer for this puzzle is "BASALT", a 6-letter word.
Solution BASALT is 6 letters long. So far we haven´t got a solution of the same word length.
There is 1 solutions. The longest is BASALT with 6 letters, and the shortest is BASALT with 6 letters.
No, "MOST VOLCANIC ROCK" hasn´t seen a spike right now. Solvers are most interested in: Crew, Network, Levy, nascency and Insignificant.
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The solution is 6 letters long.