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