The term hardness is not adequate and important for carbon fibers; they are soft materials.
the hardness of neoprene is 9
Carbon fiber does not have a hardness rating on the Mohs scale because it is not a mineral. The Mohs scale measures the hardness of minerals based on their ability to scratch each other, and carbon fiber is a composite material made of carbon atoms bonded together in a specific pattern, not a mineral with a crystal structure.
Fiber
What is the difference in the hardness between glass and fiber glass
The hardness of Limonite is 4 t0 5.5 on the mohs hardness scale.
flint is a type of quartz, so it has a hardness of about 7 on the mohs scale of hardness
what is the difference between Shore-A Hardness & Barcol Hardness
The hardness of conundrum is 9 on the Moh's hardness scale
no one likes your Hardness! hardness is not a good character.
Mohs hardness: 6 Brinell hardness: 196 MPa.
The Mohs hardness of sodium chloride is 2,5.
Dolomite has a hardness of 3.5-4 on the Mohs scale of hardness.