721.5 Mohs = 7.07 HRC
| Mohs | HRC |
|---|---|
| 706.5 Mohs | 6.93 |
| 711.5 Mohs | 6.98 |
| 716.5 Mohs | 7.02 |
| 721.5 | 7.07 |
| 726.5 Mohs | 7.12 |
| 731.5 Mohs | 7.17 |
| 736.5 Mohs | 7.22 |
721.5 Mohs = 7.07 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