Diamond refers to polished diamond, which is a natural mineral and the original stone of diamond. Simply put, diamond is a simple crystal composed of carbon element formed under high pressure and high temperature conditions in the deep part of the earth. It is a symbol of love and loyalty.
Diamonds have the highest hardness and high brittleness among natural minerals, so they will break when they collide with each other. It can be said that diamonds are not afraid of grinding, but they are afraid of hitting.
Diamond is the hardest natural substance known, and nothing can mark it. If you can mark it, it's definitely not a diamond.
In the previous textbooks, when studying the melting point and hardness, the textbooks should clearly point out that substances with high hardness may not be able to withstand hammering. Although the hardness of diamonds is the greatest known at present, they are easily broken by hammer.
What exactly are hardness and ductility?
Hardness is a technical term in physics, which refers to the local resistance of materials to hard objects pressed into their surfaces. For example, plaster is not hard at all. You just need to press hard, which may leave marks on the plaster surface. However, it is not easy to leave a mark on the metal. The reason is that their hardness is different. The harder it is, the harder it is for you to leave marks on its surface.
Ductility is one of the physical properties of matter, which refers to the degree of tempering and calendering. However, the degree of calendering of brittle materials after tempering is poor. The property that an object can be extended into filaments without breaking under the action of external force is called ductility, and the property that it can be ground into thin sheets without breaking under the action of external force (hammering or rolling) is called ductility. Metals have good ductility, among which gold, platinum, copper, silver, tungsten and aluminum are all rich in ductility. If you want to process, you can knead the iron wire into many shapes, and even make the square iron block into a circle, a U-shape and so on.
On the other hand, diamonds are fragile substances. You can only cut it, and the smaller it is. And you can't lose your temper at will.