Using Mohs' Hardness Scale! 💎

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Using Moh's hardness scale to determine the hardness of a steel file
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Will something usually leave a streak across something that is harder on the scale? Thank you for posting this I've been looking for a good video of someone demonstrating a scratch test

robinlaszlo
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Knife sharpener take you up to 9 . I guess this is wood file

manatworkhoyeahlovegodmade
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Thanks for showing. I then suppose without reading any literature, that Mohs scale does not depend on Pressure level. If you had huge pressure power on the level 7, you should not still be able to scratch it ?

johnlukotrafitis