519.5 Mohs = 5.09 HRC
| Mohs | HRC |
|---|---|
| 504.5 Mohs | 4.95 |
| 509.5 Mohs | 5 |
| 514.5 Mohs | 5.04 |
| 519.5 | 5.09 |
| 524.5 Mohs | 5.14 |
| 529.5 Mohs | 5.19 |
| 534.5 Mohs | 5.24 |
519.5 Mohs = 5.09 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