| Hardness scale inventor |
Premier Sunday |
03 Mar 2024 |
| Hardness scale name |
Universal |
20 Jan 2024 |
| ___ scale, on which topaz is an eight |
Universal |
16 Jan 2024 |
| Scale on which diamonds are a 10 |
|
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| Scale for mineral hardness |
Universal |
24 Dec 2023 |
| ___ scale (set of hardness ratings) |
|
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| — scale (mineral hardness gauge) |
Premier Sunday |
26 Nov 2023 |
| ? scale (mineral hardness gauge) |
|
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| — scale of hardness |
Premier Sunday |
08 Oct 2023 |
| Eponymous mineralogist Friedrich |
New York Times |
03 Sep 2023 |
| Mineral hardness scale |
LA Times Daily |
01 Aug 2023 |
| ___ scale (measure of hardness) |
New York Times |
10 Jul 2023 |
| Mineral-hardness scale name |
Eugene Sheffer |
23 Jun 2023 |
| Friedrich who created a mineral hardness scale |
Universal |
19 May 2023 |
| Hardness scale creator |
Newsday |
09 Feb 2023 |
| Mineralogist who created a scale |
LA Times Daily |
14 Jan 2023 |
| Mineral hardness scale |
LA Times Daily |
11 Dec 2022 |
| Friedrich who created a scale of hardness |
New York Times |
02 Nov 2022 |
| Mineralogist Friedrich |
Wall Street Journal |
27 Oct 2022 |
| Mineral hardness scale name |
Universal |
23 Oct 2022 |
| Mineralogist with a scale |
Wall Street Journal |
10 Sep 2022 |
| Geologist into the hard stuff |
Newsday |
08 Jul 2022 |
| Scale that ranges from talc to diamond |
Wall Street Journal |
27 Sep 2021 |
| Mineral hardness scale |
LA Times Daily |
21 May 2021 |
| Mineral hardness scale |
The Washington Post |
21 May 2021 |
| ___ scale (measure of mineral hardness) |
The Washington Post Sunday |
18 Apr 2021 |
| ___ scale, on which diamond is a 10 |
Universal |
13 Apr 2021 |
| ___ scale, on which talc is a 1 |
Universal |
15 Jan 2021 |
| Mineralogist with a namesake scale |
Wall Street Journal |
12 Jan 2021 |
| Homer Simpson's hangout* |
Newsday |
02 Oct 2020 |
| Hardness scale mineralogist |
Newsday |
27 Sep 2020 |
| Mineralogical eponym |
New York Times |
03 Sep 2020 |
| Mineral-hardness scale name |
Eugene Sheffer |
26 Aug 2020 |
| ___ scale (rater of mineral hardness) |
New York Times |
10 Aug 2020 |
| First class in genetic engineering |
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| Hardness scale guy |
Newsday |
26 Jul 2020 |
| Scale expressing the hardness of solids |
The Telegraph General Knowledge |
27 Oct 2019 |
| ___ scale (talc-to-diamond range) |
Wall Street Journal |
03 Sep 2019 |
| Hardness scale name |
Newsday |
21 Jul 2019 |
| Hardness scale creator |
Newsday |
07 Apr 2019 |
| Eponymous scale inventor |
New York Times |
15 Jan 2019 |
| Mineral hardness scale |
|
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| Mineralogist Friedrich with a well-known scale |
|
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| ___ scale (talc-to-diamond range) |
|
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| Eponymous scale inventor |
|
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| Earth science eponym |
Newsday |
28 Dec 2018 |
| Inspiration for a field geologist's kit |
Newsday |
17 Nov 2018 |
| Mineralogist with a scale |
Jonesin |
23 Oct 2018 |
| Friedrich known for a mineral hardness scale |
The Washington Post Sunday |
12 Nov 2017 |
| ___ scale |
New York Times |
18 Aug 2017 |
| Mineral-hardness scale |
Newsday |
23 Jul 2017 |
| Eponymous developer of a mineral scale |
Jonesin |
28 Mar 2017 |
| ___ scale |
|
|
| ___ scale (measure of hardness) |
New York Times |
04 Oct 2016 |
| Hardness-measuring scale |
Universal |
02 Aug 2016 |
| Eponymous scale |
Wall Street Journal |
08 Jun 2016 |
| Scale for rock hounds |
LA Times Daily |
04 May 2016 |
| Eponymous German mineralogist |
The Washington Post |
10 Apr 2016 |
| Mineral scale deviser |
Newsday |
24 Mar 2016 |
| Hardness scale |
USA Today |
23 Mar 2016 |
| Hardness scale |
Universal |
08 Mar 2016 |
| Mineral hardness scale |
Jonesin |
23 Feb 2016 |
| Scratch resistance scale |
The Washington Post |
12 Feb 2016 |
| Scale for rock hounds |
|
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| ___ scale (measure of hardness) |
|
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| Hardness-measuring scale |
|
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| Inventor of a mineral hardness scale |
New York Times |
18 Sep 2015 |
| -- scale of hardness |
Premier Sunday |
06 Sep 2015 |
| Scale on which topaz is 8 |
Wall Street Journal |
17 Jul 2015 |
| Rock hardness scale |
Universal |
28 May 2015 |
| Scale on which topaz is 8 |
|
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| -- scale of hardness |
|
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| Rock hardness scale |
|
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| Hardness scale |
|
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| Inventor of a mineral hardness scale |
|
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| Scratch-resistance scale |
|
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| Mineralogist for whom a scale is named |
|
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| Eponymous developer of a mineral scale |
|
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| Man with a diamond-topped scale |
|
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| Geologist who named a scale |
|
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| Mineralogist Friedrich |
|
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| Scale on which diamond is assigned a "10" |
|
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| Talc-to-diamond hardness scale inventor |
|
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| Talc-to-diamond hardness scale inventor |
|
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| ___ scale (mineral hardness measure) |
|
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| Eponymous mineralogist |
|
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| Eponymous mineralogist |
|
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| Kind of scale of mineral hardness |
|
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| Hardness scale eponym |
|
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| Mineralogist with a scale |
|
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| Maker of a scale of hardness |
|
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| German geologist who gave his name to a hardness scale |
|
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| Mineralogy scale |
|
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| Mineralogist with a scale |
|
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| Mineralogist who developed a hardness scale |
|
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| __ scale: talc-to-diamond |
|
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| Scale on which diamond is 10 |
|
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| Hardness-scale inventor |
|
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| ___ scale of mineral hardness |
|
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| Mineralogist Friedrich |
|
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| __ scale: talc-to-diamond |
|
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| Eponymous scale developer |
|
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| Hardness scale inventor |
|
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| Hardness-scale inventor |
|
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| Mineral-hardness scale |
|
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| -- scale (mineral hardness gauge) |
|
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| __ scale of hardness |
|
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| Mineral scale |
|
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| Mineralogist Friedrich |
|
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| Inventor of a mineral hardness scale |
|
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| With 46-Down, hardness-measuring system |
|
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| ___ scale (hardness measure) |
|
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| Mineral scale |
|
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| __ scale (hardness measure) |
|
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| Topaz = 8, to him |
|
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| -- scale (mineral hardness measurer) |
|
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| Hardness-scale designer |
|
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| Mineral-hardness scale |
|
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| Hardness scale inventor |
|
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| Scale in which diamond=10 |
|
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| Scale discussed in earth science class |
|
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| German mineralogist |
|
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| __ scale (hardness measurer) |
|
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| Mineralogist Friedrich |
|
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| Scale discussed in earth science class |
|
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| Scale on which this puzzle is based |
|
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| Talc-to-diamond scale |
|
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| Quartz = 7, to him |
|
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| Hardness scale |
|
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| ___ scale (hardness measure) |
|
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| Scale in which talc = 1 |
|
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| Scale of mineral hardness |
|
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| Mineral hardness scale inventor |
|
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| Mineralogy hardness scale name |
|
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| Hardness scale |
|
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| Hardness scale eponym |
|
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| German mineralogist Friedrich |
|
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| ___ scale (mineral hardness measurer) |
|
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| Eponymous German mineralogist |
|
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| Assigner of "10" to diamond |
|
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| Mineralogy hardness scale name |
|
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| Kind of scale |
|
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| ___ scale |
|
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| He assigned "1" to 77 Across |
|
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| Scale in which diamond=10 |
|
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| ___ scale: talc-to-diamond |
|
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| Mineral hardness scale inventor Friedrich |
|
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| Talc-to-diamond scale |
|
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| Scale where gypsum is 2 |
|
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| Scale where talc rates a 1 |
|
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| ___ scale (mineral hardness numbers) |
|
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| Rock-hardness scale |
|
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| Scale on which diamond rates a 10 |
|
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| Minerals' hardness-scale inventor |
|
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| Hardness scale |
|
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| _____ scale (hardness measure) |
|
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| Minerals' hardness-scale inventor |
|
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| ___ scale indicating relative hardness of metals. |
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