Softest rock on the Mohs scale of mineral hardness

Let's find possible answers to "Softest rock on the Mohs scale of mineral hardness" crossword clue. First of all, we will look for a few extra hints for this entry: Softest rock on the Mohs scale of mineral hardness. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.