Diamond is commonly known to be the hardest material, but how do other minerals compare with each other? That’s the question the Mohs hardness scale, introduced by Friedrich Mohs in 1812, aims to answer. This graphic looks at his scale and where different minerals and other substances appear on it.
![Infographic on the Mohs Mineral Hardness Scale. The graphic shows the scale, which runs from 0-10, and also highlights a number of minerals with their point on the scale. Key reference minerals for each point on the scale are also shown: 1 = talc, 2 = gypsum, 3 = calcite, 4 = fluorite, 5 = apatite, 6 = feldspar, 7 = quartz, 8 = topaz, 9 = corundum, 10 = diamond.](https://i0.wp.com/www.compoundchem.com/wp-content/uploads/2022/11/Mohs-Hardness-Scale.png?resize=370%2C208&ssl=1)