+The Mohs scale of mineral [Hardness](/wiki/hardness) characterizes the scratch resistance of various [Minerals](/wiki/mineral) through the ability of a harder material to visibly scratch a softer material. Developed by Friedrich Mohs, it is a qualitative ordinal scale from 1 (talc) to 10 (diamond), essential for identification.
+## See also
+- [Rock](/wiki/rock)
+- [Gemstone](/wiki/gemstone)
+- [Crystal](/wiki/crystal)