lignite (brown coal) from Bergheim/ Germany isolated on white background
Schlüsselwörter
lignite,
coal,
sediment,
sedimentary,
carbon,
soft coal,
high-quality,
rheinland,
energy,
fossil,
coke,
power generation,
mining,
mine,
industrial,
german,
german,
production,
natural resource,
discovery,
artifact,
geology,
natural,
mineralogy,
isolated,
white background,
resource,
pit,
shaft
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