Electron microscopic mineral analysis on lung tissue (fibres/g dry lung tissue × 106)
| Case | Total | Amosite | Crocidolite | Chrysotile | Mullite | Others |
| 1 | 27.2 | ND | ND | ND | 8.8 | 18.4 (0.5 tremolite) |
| 2 | 51.7 | 12.3 | 29.5 | ND | 7.5 | 2.4 |
| 3 | 6.9 | 0.4 | ND | 0.2 | 5.8 | 0.5 |
In case 1 non-fibrous mineral analysis revealed that 90% of particulate matter was mica.
ND = not detected.