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| carbonaceous shale | |||
| coal shale | |||
| bony coal | |||
| black bat; black cat; black metal; black stone; bone; bone coal; cann shale (slate); coal slate; combustible schist; culm; dandy; danks; drub coal; drug; jabez; jerry; jet rock; macker; macket; mawker; mawkie; pindy; pouncil (bat); rash; rattle jack; slate; smult; smut blackbat; smuth; trub | |||
| Kohlenschiefer: 1 phrase in 1 subject |
| Mining | 1 |