What is the answer to "Hardness scale inventor" in the Newsday Crossword?

The answer to the Newsday Crossword clue "Hardness scale inventor" is MOHS (4 letters).

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Hardness scale inventor Newsday Crossword Clue

Down clue · from the April 6, 2025 puzzle

Stuck on “Hardness scale inventor” from the Newsday Crossword? Here is the verified answer:

Answer

MOHS

4 letters · Down · last seen April 6, 2025

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