The most famous way of measuring it provides a very low value for talc and high value for diamond.
An increase in this property relative to another is described by the Hall-Petch Effect, and Meyer's Law provides an empirical relation for it. It may be described as Berkovitch or measured by the Bennett scale, which uses the same principle as a scleroscope, creating results in Shore units. It can also be measured by a Rockwell test or a superficial Rockwell test, a Knoop Test or Vickers Test which requires magnification, or a Brinell Test which employs a sphere. The most famous way of measuring it provides a very low value for talc and high value for diamond. FTP, name this basic physical property measured by the Mohs scale.
An increase in this property relative to another is described by the Hall-Petch Effect, and Meyer's Law provides an empirical relation for it.
{hardness}