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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Geology (GG)
What is the difference in hardness of apatite and corrundum according to moh hardness scale?is it apatite=5 and corrundum 9.so difference=4?
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Rahul kumar
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No, Mohs scale of hardness is relative scale of hardness so if hardness of apatite is 5 and corundum is 9 then their hardness difference wouldn't be equal to 4. Mohs hardness scale is a relative scale and is nonlinear. See the attached figure for detail.
![cropped7503637440854732646.jpg]()
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Sajan sarthak Best Answer
No the absolute value is actually different. 400 - 48= 352 absolute hard ness
thank u sir.
answer is 352.?
sir i have to remember the values??
of absolute hardness
No not at all
If someone asks about the Mohr scale hardness difference you can simply say no they are not as different as the scale because that is a relative scale.and according to there absolute value thet are just arranged in 1 to 10
understood 🙂