A small pile of black coal in focus on a white background

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background bituminous black burning carbon central coal companies cost crystal dark deep digging dirty energy exploitation export extract extraction fossil fuel gas heat heating heavy hot import industry lignite manufacturing material metallurgical mine miner mineral mines open-cast ore pollution power prices resources smoke stone stove texture tiled types unclean underground work worker
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  • Details
  • Published on Oct 28, 2022
  • Photo type JPG
  • Category Objects