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bituminous coal
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bituminous coal bituminous coal World map highlighting the locations of major coal deposits, with orange areas indicating anthracite and bituminous coal and green areas showing lignite. Significant coal regions are marked across North America, Europe, Russia, China, India, Australia, and southern Africa.
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bituminous coal
bituminous coal Bituminous coal.

bituminous coal

coal classification
Also known as: Steinkohle, sea coal
Written by
Otto C. Kopp
Professor Emeritus of Geological Sciences, University of Tennessee, Knoxville.
Otto C. Kopp
Fact-checked by
Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

bituminous coal, the most abundant form of coal, intermediate in rank between subbituminous coal and anthracite according to the coal classification used in the United States and Canada. In Britain bituminous coal is commonly called “steam coal,” and in Germany the term Steinkohle (“rock coal”) is used. In the United States and Canada bituminous coal is divided into high-volatile, medium-volatile, and low-volatile bituminous groups. High-volatile bituminous coal is classified on the basis of its calorific...

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