kovuusasteikon
Kovuusasteikko, often translated as hardness scale, is a system used to rank and compare the scratch resistance of minerals. The most widely recognized hardness scale is the Mohs scale, developed by German geologist Friedrich Mohs in 1812. It consists of ten reference minerals, each assigned a number from 1 to 10, representing increasing hardness.
A mineral with a higher Mohs hardness number can scratch a mineral with a lower number, but
The Mohs scale is a practical tool for mineral identification in the field and laboratory. Geologists and