Bituminous coal

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Notion

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Science and technology

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What Wikipedia says

Bituminous coal, or black coal, is a type of coal containing a tar-like substance called bitumen or asphalt. Its coloration can be black or sometimes dark brown; often there are well-defined bands of bright and dull material within the seams. It is typically hard but friable.

Excerpt from the Wikipedia article “Bituminous coal”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

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