Crossword clue: another word for tuff
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
hard volcanic rock composed of compacted volcanic ash
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
hard volcanic rock composed of compacted volcanic ash