Clue: Inventor of a mineral hardness scale
We have 1 answer for the clue Inventor of a mineral hardness scale. See the results below.
Possible Answers:
Related Clues:
- ___ scale
- Kind of scale
- Eponymous German mineralogist
- Mineral hardness scale inventor
- Scale of mineral hardness
- Mineralogist Friedrich
- Scale in which diamond=10
- Mineral hardness scale inventor Friedrich
- Talc-to-diamond scale
- ___ scale (mineral hardness measure)
Last Seen In:
- New York Times - September 18, 2015
- Washington Post - May 08, 2008
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