824 Mohs = 8.08 HRC
| Mohs | HRC |
|---|---|
| 809 Mohs | 7.93 |
| 814 Mohs | 7.98 |
| 819 Mohs | 8.03 |
| 824 Mohs | 8.08 |
| 829 Mohs | 8.13 |
| 834 Mohs | 8.18 |
| 839 Mohs | 8.23 |
824 Mohs = 8.08 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