The Moh’s hardness scale was developed by a German mineralogist named Friedrich Mohs in 1812.
The hardness of the material gives it the ability to resist permanent deformation when the load is applied. From an engineering point of view, determining the hardness of the material is important because resistance to wear by erosion or friction by different elements tends to increase with hardness generally. The greater would be the ability of the material to resist deformation as greater it would be its hardness.
There are several hardness tests available in the market according to the type of test, the material of indenter, the type of sample, etc. Since the past few decades, there has been a surge in the market for the hardness testers.
The hardness of the bullet depends on the hardness of the lead alloy that is used to manufacture bullets.
This hardness also depends upon the type of pistol that will be used to fire the bullet.
Hold the element and scratch it with any of the reference mineral. Press the unknown element with the reference one and examine whether there is any scratch on the sample or not. If the sample mineral has any scratch, then that specimen has equal hardness or less than the reference one.
Hardness is the property of any material to resist deformations to its shape when it is subjected to an external force. Hardness testing is important for technical and engineering applications as it helps to determine the hardness and tensile strength of materials.