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  2. Subbituminous Coal Usually Contains 35 45 Carbon

Subbituminous Coal Usually Contains 35 45 Carbon

Subbituminous Coal Usually Contains 35 45 Carbon

Subbituminous coal typically contains 35-45 carbon. Most subbituminous coal in the United States is at least 100 million years old. About 46 of the coal produced in the United States is subbituminous. Wyoming is the leading source of subbituminous coal. Lignite is the lowest rank of coal with the lowest energy content. Lignite coal deposits .

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