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węgiel brunatny
gen.	brown coal
construct.	hydrogenous coal
environ.	lignite Coal of relatively recent origin consisting of accumulated layers of partially decomposed vegetation, intermediate between peat and bituminous coal; often contains patterns from the wood from which it formed (węgiel stosunkowo współczesnego pochodzenia, utworzony z częściowo rozłożonej roślinności; o charakterze pośrednim między torfem a węglem kamiennym)
mineral.	lignite