91.5 Mohs = 0.9 HRC
| Mohs | HRC |
|---|---|
| 76.5 Mohs | 0.75 |
| 81.5 Mohs | 0.8 |
| 86.5 Mohs | 0.85 |
| 91.5 | 0.9 |
| 96.5 Mohs | 0.95 |
| 101.5 Mohs | 1 |
| 106.5 Mohs | 1.04 |
91.5 Mohs = 0.9 HRC
1 HRC ≈ 10.2 HV · 1 HRB ≈ 1.8 HV · 1 Mohs ≈ 0.1 HV — approximate; real conversions vary by material per ASTM E140