Hardness is a property of substances.
Yes, hardness is a specific property of each material.
The property is hardness.
physical property
For example a low hardness or a low melting point.
A physical property can be observed without changing the substance into something else.
No natural substance is equal in hardness to a diamond.
The hardness of diamond is a physical property of the diamond. The statement is also untrue as diamond is only the hardest known mineral, not the hardest known substance.
physical property
Magnetic hardness is the resistance to demagnetization. It is an intrinsic solid state property that is quite in contrast with hardness based on the presence of fine particles.
Yes, the hardness of a metal is a physical property.
physical property
physical property