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2. Mohs scale - Wikipedia

   en.wikipedia.org/wiki/Mohs_scale

   Mohs hardness kit, containing one specimen of each mineral on the ten-point hardness scale. The Mohs scale (/ m oʊ z / MOHZ) of mineral hardness is a qualitative ordinal scale, from 1 to 10, characterizing scratch resistance of minerals through the ability of harder material to scratch softer material.

3. Hardnesses of the elements (data page) - Wikipedia

   en.wikipedia.org/wiki/Hardnesses_of_the_elements...

   Mohs scale of mineral hardness; Mohs hardness of materials (data page) Vickers hardness test; Brinell scale This page was last edited on ...

4. Scratch hardness - Wikipedia

   en.wikipedia.org/wiki/Scratch_hardness

   The first scientific attempt to quantify materials by scratch tests was by mineralogist Friedrich Mohs in 1812 (see Mohs scale). [3] [4] The Mohs scale is based on relative scratch hardness of different materials; with talc assigned a value of 1 and diamond assigned a value of 10. [5] Mohs's scale had two limitations: it was not linear, and ...

5. Corundum - Wikipedia

   en.wikipedia.org/wiki/Corundum

   Because of corundum's hardness (pure corundum is defined to have 9.0 on the Mohs scale), it can scratch almost all other minerals. It is commonly used as an abrasive on sandpaper and on large tools used in machining metals, plastics, and wood.

6. Moissanite - Wikipedia

   en.wikipedia.org/wiki/Moissanite

   On the Mohs scale of mineral hardness (with diamond as the upper extreme, 10) moissanite is rated as 9.25. [4] As a diamond alternative, Moissanite has some optical properties exceeding those of diamond.

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Hardness - Wikipedia

   en.wikipedia.org/wiki/Hardness

   When testing coatings, scratch hardness refers to the force necessary to cut through the film to the substrate. The most common test is Mohs scale, which is used in mineralogy. One tool to make this measurement is the sclerometer. Another tool used to make these tests is the pocket hardness tester. This tool consists of a scale arm with ...

9. Today's Wordle Hint, Answer for #1259 on Friday, November 29 ...

   www.aol.com/lifestyle/todays-wordle-hint-answer...

   Today's Wordle Answer for #1259 on Friday, November 29, 2024. Today's Wordle answer on Friday, November 29, 2024, is HIPPO. How'd you do? Next: Catch up on other Wordle answers from this week.