subbituminous coal isolated white background
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
subbituminous coal isolated white background |
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| navigate by keyword : almost antimonite ash background banded bit black boulder carbon carbonate clay close coal coarse composed entirely finegrained foliated formed fossil fuel geology gneiss grained granite graphite hard igneous isolated leave lignite macro made marble medium metamorphic metamorphism mineral minerals natural nature nobody nonfoliated object ore raw recrystallized regional rock rough rubbed sedimentary shale slate solid stibnite stone streak subbituminous sulfide texture version volcanic white |
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| Black lignite, generally dark brown to black coal, intermediate in rank between lignite and bituminous coal according to the coal classification used in the United States and Canada. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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