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Allaby, Michael (2013). "bituminous coal". A dictionary of geology and earth sciences (Fourthed.). Oxford: Oxford University Press. ISBN 9780199653065. The Johannesburg Anthracite Company team have considerable experience in the coal industry. This experience means that we provide you – the customer – with only the best quality anthracite coal for your needs. We pride ourselves on Johannesburg’s best supplier of anthracite coal. Coal prices and outlook - U.S. Energy Information Administration (EIA)". www.eia.gov . Retrieved 2023-05-13.

Annual coal report". Coal. U.S. Energy Information Administration. 4 October 2021 . Retrieved 13 November 2021. Both coals have their advantages. For many, the affordability and ease of use of bituminous coal is enough to sway them. However, with a growing focus on the environment, with the government looking to cut air pollution in the UK, bituminous house coal may be seen as an outdated solid fuel for some. This is especially true for those who live in smoke control areas. We can deliver anthracite coal to customers in Sheffield, Rotherham, Workshop and Retford or alternatively visit our yard in Attercliffe. The anthracite coal we deliver can be bagged or lose (tipped into a coal bunker).

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anthracite". The Oxford English Dictionary (2nded.). Oxford University Press. 1989 . Retrieved 2010-06-26.

When burned, bituminous coal releases sulfur dioxide into the atmosphere, contributing to air pollution and acid rain. However, advancements in technology have allowed for the development of clean-coal technologies aimed at reducing emissions. Sahney, S.; Benton, M.J.; Falcon-Lang, H.J. (2010). "Rainforest collapse triggered Pennsylvanian tetrapod diversification in Euramerica". Geology. 38 (12): 1079–1082. Bibcode: 2010Geo....38.1079S. doi: 10.1130/G31182.1.Coal analyses may be presented in the form of “ proximate” and “ ultimate” analyses, whose analytical conditions are prescribed by organizations such as ASTM. A typical proximate analysis includes the moisture, ash, volatile matter, and fixed carbon contents. (Fixed carbon is the material, other than ash, that does not vaporize when heated in the absence of air. It is usually determined by subtracting the sum of the first three values—moisture, ash, and volatile matter—in weight percent from 100 percent.) It is important for economic reasons to know the moisture and ash contents of a coal because they do not contribute to the heating value of a coal. In most cases ash becomes an undesirable residue and a source of pollution, but for some purposes (e.g., use as a chemical source or for coal liquefaction) the presence of mineral matter may be desirable. Most of the heat value of a coal comes from its volatile matter, excluding moisture, and fixed carbon content. For most coals it is necessary to measure the actual amount of heat released upon combustion (expressed in megajoules per kilogram or British thermal units per pound). The liptinite group makes up 5 to 15 percent of many coals. Liptinites are derived from waxy or resinous plant parts, such as cuticles, spores, and wound resins. Their reflectance values are usually the lowest in an individual sample. Several varieties are recognized, including sporinite (spores are typically preserved as flattened spheroids), cutinite (part of cross sections of leaves, often with crenulated surfaces), and resinite (ovoid and sometimes translucent masses of resin). The liptinites may fluoresce (i.e., luminesce because of absorption of radiation) under ultraviolet light, but with increasing rank their optical properties approach those of the vitrinites, and the two groups become indistinguishable.