Bituminous coal
Bituminous coal
Collective term for higher-quality coal.
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First pulled by Mrbeginning, Oct 31, 2026
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Readers' pathsAug 2026 – Oct 2026
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Anthracite
Hard, compact variety of coal.
28%
Lignite
Soft, brown, combustible, sedimentary rock.
11%
Bitumen
Form of petroleum primarily used in road construction.
9.5%
Coal
Combustible sedimentary rock composed primarily of carbon.
8.5%
Sub-bituminous coal
Lower grade of coal that contains 35–45% carbon.
7.8%
Coke (fuel)
Coal product used in the process of making steel.
2.6%
Carboniferous
Fifth period of the Paleozoic Era.
2.3%
Metallurgical coal
Grade of coal.
2.2%
Coal mining
Process of getting coal to the surface.
1.5%
Okefenokee Swamp
Wetlands in Florida and Georgia, U.S.
1.1%
Readers come from
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Coal
Combustible sedimentary rock composed primarily of carbon.
21%
Coke (fuel)
Coal product used in the process of making steel.
16%
Anthracite
Hard, compact variety of coal.
12%
Lignite
Soft, brown, combustible, sedimentary rock.
3.6%
Sub-bituminous coal
Lower grade of coal that contains 35–45% carbon.
3.6%
USS Maine (1890)
Battleship of the United States Navy.
2.2%
Coal mining in the United Kingdom
1.5%
Mineraloid
Non-crystalline mineral-like substance.
1.4%
Australia
Country in Oceania.
1.3%
Coal breaker
Coal processing plant which breaks coal into various sizes.
1.2%