[DOC] [TLE] Classification and Rank of Coal . University of Kentucky [PAR] The kinds of coal, in increasing order of alteration, are lignite (brown ... High-rank 
coals, including bituminous and anthracite coals, contain more carbon than... [DOC] [TLE] Types of coal, lignite, subbituminous coal, anthracite, bituminous coal [PAR] Bituminous coal is the most common coal and has a moisture content less than 
20 % ... It is the highest rank of coal. moisture content generally is less than 15 %. [DOC] [TLE] Coal: Anthracite, Bituminous, Coke, Pictures, Formation, Uses [PAR] Coal is a biological sedimentary rock that forms from plant debris. ... Anthracite 
coal: Anthracite is the highest rank of coal. It has a bright luster and breaks with a
... [DOC] [TLE] coal classification | coal | Britannica.com [PAR] The most common classification is based on rank, referring to the degree of 
coalification that has occurred. ... Coal may be classified in rock types (or 
lithotypes) based on the presence of ... Based on maceral content and its 
appearance in a hand specimen, coal is ... less than, agglomerating ... 
semianthracite 1, 86, 92, 8, 14. [DOC] [TLE] Types and Composition of Coal - Ground Truth Trekking [PAR] Apr 19, 2010 ... Anthracite: This is the highest ranked, hardest, oldest, and least common type of 
coal. It possesses a high energy content, high percentage of... [DOC] [TLE] coal characteristics - Purdue University [PAR] most commonly used for ... but less than that of anthracite. Bituminous ... 
anthracite forms from bituminous coal when great pressures ... of carbon is 
achieved at Anthracite rank & above. Graphite ... its conversion to rock) of plant 
matter (50% by. [DOC] [TLE] Coal - Wikipedia [PAR] Coal is a combustible black or brownish-black sedimentary rock usually 
occurring in rock strata in layers or veins called coal beds or coal seams. The 
harder forms, such as anthracite coal, can be regarded as metamorphic .... 
Anthracite, the highest rank of coal, is a harder, glossy black coal used primarily 
for residential and... [DOC] [TLE] How Coal Works | Union of Concerned Scientists [PAR] Its time to send our dirty old King into retirement. ... There are four "ranks" of coal: 
lignite, subbituminous, bituminous, and anthracite, from lowest to highest. ... The 
ranks are really on a continuum from low carbon/low energy content to high .... In 
the most common type of coal plant, pulverized coal is blown into the furnace... [DOC] [TLE] coal - National Geographic Society [PAR] Dec 22, 2012 ... lignite, sub-bituminous, bituminous, anthracite, coke ... Coal is the most abundant 
fossil fuel on Earth. ... Hilt's Law states that the deeper the coal seam, the higher 
its rank. .... Graphite conducts electricity well, and is commonly used in lithium ... If 
coal is less than 61 meters (200 feet) underground, it can be... [DOC] [TLE] Different types of Coal  Coal Types WA | Griffin Coal [PAR] There are four different types of coal; Peat, Lignite, Black Coal and Anthracite, 
they ... to as a coal's rank, with peat being the lowest rank coal and anthracite 
the highest. ... As the coal develops it loses its fibrous character and darkens in 
colour. ... These are typical of most of the coals mined in NSW and Queensland, 
which... [DOC] [TLE] Coal [PAR] It is the carbon content of the coal that supplies most of its heating value. ... 
Bituminous coal is the most commonly found type of coal in the U.S. with ... 
Whereas other ranks of coal are classed as sedimentary rocks, anthracite is 
metamorphic. ... links below to learn about the different types of mining used to "
harvest" coal and... [DOC] [TLE] EIA Energy Kids - Coal - US Energy Information Administration [PAR] Coal is classified into four main types, or ranks: anthracite, bituminous, 
subbituminous, and lignite. ... Lignite is crumbly and has high moisture content, 
which contributes to its low heating value. Lignite ... Artist's rendering of a

Question: Ranking below anthracite, it's the most common type of coal
Answer: Bituminous