Converter
ordinal scratch-resistance scale
Mohs hardness
reference-only
- Record
- M659
- Definition quality
- Historically documented
- Conversion mode
- reference only
- Calculator
- Reference table only
Mohs is an ordinal relative scale; equal numeric steps do not represent equal physical-hardness increments.
Definition
Mohs scale orders ten reference minerals by scratch resistance.
Modern use
Modern use is context-dependent and varies by region or measurement system.
Sources & evidence
Source tier — · confidence high