834 Mohs = 8.18 HRC
| Mohs | HRC |
|---|---|
| 819 Mohs | 8.03 |
| 824 Mohs | 8.08 |
| 829 Mohs | 8.13 |
| 834 Mohs | 8.18 |
| 839 Mohs | 8.23 |
| 844 Mohs | 8.27 |
| 849 Mohs | 8.32 |
834 Mohs = 8.18 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