lump coal
Chunky black rocks
Lump coal is coal in large, irregular chunks rather than processed into uniform pieces or powder.
It burns hotter and cleaner than smaller grades, making it preferred for blacksmithing and certain industrial uses: The forge requires lump coal, not briquettes.
- anthraciteHighest-grade coal variety
- chunkThick solid piece
- blackDarkest possible hue
- black diamondExpert ski run marker
- mineOre excavation site
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