diamond is the hardest substance naturally occurring in nature. According to the classification on the Mohs hardness scale, the diamond hardness is 10 degrees. The extremely high hardness makes diamonds very versatile. For example, it is often used as a cutting tool in handicrafts and industries, and it is also a precious gem that has attracted much attention.
Note: Mohs hardness, also known as Mohs hardness, is a standard for mineral hardness. Use the scratch method to scratch the surface of the tested mineral with a pyramid-shaped diamond drill needle. According to the depth of the measured scratch, the hardness is divided into ten levels.
diamond is not the hardest material in the world
diamond is just the hardest in nature.
diamond has a Mohs hardness rating of 10, but there are actually substances with a hardness greater than 10:
· aggregated diamond nanorod (ADNR)-in 2005, German scientists developed a harder than diamond The material has broad industrial application prospects.
· Carbon tetranitride—its structure was theoretically predicted in 1989, and it was successfully synthesized in the laboratory in 1993. Under visible light conditions, the material exhibits good photocatalytic performance and can degrade organic compounds such as methyl blue.
Diamond hardness ≠ compression capacity
Diamond hardness is not directly proportional to the diamond's anti-hit ability. In terms of "compression resistance", the performance of a diamond with a hardness of 10 is far inferior to gold with a hardness of only 2 to 3. When testing the hardness of a diamond,
scratches its surface to determine the hardness level. It does not directly use a hammer or other hard objects to judge the hardness. Therefore, the high hardness of the diamond does not mean its strong anti-shock ability.
In other words, diamonds are abrasion-resistant and not impact-resistant, and they are easily broken by impact.
Therefore, even if the diamond is very hard, don't be careless when wearing it. Accidental collision and fragmentation are a big loss.
When wearing or placing diamonds, you should follow the following suggestions:
1. Do not wear diamond jewelry to carry heavy objects, do sports, etc., to prevent the sharp corners of the diamond from hitting hard objects and cause damage;
2. Diamonds with special inclusions near the waist are more likely to be damaged;
3. Do not wear diamonds that have been chipped;
4. Do not choose diamonds with a thin waistline to ensure normal diamond cutting ratio;
5. Choose to protect Diamond setting styles, such as bezel setting, half bezel setting or six-claw setting;
6. Olive-shaped, princess-shaped, heart-shaped, pear-shaped and other diamonds with sharp corners. The sharp corners of the diamond are best set with metal prongs Wrap around;
