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| culm; stone coal | |||
| black coal; black coal A natural black graphitelike material used as a fuel, formed from fossilized plants and consisting of amorphous carbon with various organic and some inorganic compounds | |||
| charcoal; charcoal black; charcoal gray | |||
| stove coal; hard coal stonecoal; lean coal | |||
| hard coal | |||
| anthracite | |||
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| anthracitic coals | |||
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anthracite : 24 a las frases, 9 temas |
| Carbón | 1 |
| Estadísticas | 1 |
| Estudios culturales | 3 |
| General | 5 |
| Industria energetica | 1 |
| Metalurgia | 7 |
| Microsoft | 1 |
| Química | 4 |
| Recursos naturales y conservación de la vida silvestre. | 1 |