 |
| |||
| argillaceous shale; slate | |||
| clay shale; killas | |||
| argillaceous shale (slate); black alta; clayey shale; dunite (in Flöznähe); metal; rab; tow | |||
| argillite; dunn bass; argillaceous slate; grapholith | |||
| clay slate; underclay; shale | |||
| argillaceous schist | |||
| |||
| shaley; shaly | |||
|
Tonschiefer : 9 phrases, 2 sujets |
| Exploitation minière | 5 |
| Métallurgie | 4 |