Glass is usually 6.5 on the Mohs scale. Mohs hardness is a measure of the hardness of minerals, which is divided into 10 levels, from 1 (softest) to 10 (hardest). The hardness of glass is around 6.5, which means that it can resist mechanical effects such as scratching, pressing or grinding.
In addition, the hardness of glass can also be measured by other standards. For example, the surface hardness of untreated ordinary glass is about 6H, while the hardness of tempered glass can reach 9H. The Mohs hardness of household glass is 5.5, corresponding to an HRC hardness of 61.7.
