What is the meaning of SUBBITUMINOUS COAL?

SUBBITUMINOUS COAL is a dull black coal with a higher heating value than lignite. It is found primarily in the western United States.

Barry Goldsmith
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APABarry Goldsmith. (2010). subbituminous coal. Retrieved September 23, 2026, from http://smartdefine.org/subbituminous_coal/definitions/1164437
ChicagoBarry Goldsmith. 2010. "subbituminous coal" http://smartdefine.org/subbituminous_coal/definitions/1164437 (accessed September 23, 2026).
HarvardBarry Goldsmith 2010, subbituminous coal, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/subbituminous_coal/definitions/1164437>.
MLABarry Goldsmith. "subbituminous coal" 21 October 2010. Web. 23 September 2026. <http://smartdefine.org/subbituminous_coal/definitions/1164437>