Anthracite Anthracite Anthracite, often referred to as hard coal, is a hard, compact variety of coal that has a submetallic luster. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coal. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 92% and 98%. The term is applied to those varieties of coal which do not give off tarry or other hydrocarbon vapours when heated below their point of ignition. Anthracite ignites with difficulty and
Coal mining in the United Kingdom or low-carbon sources and loss of industry due to globalisation. Oil and gas reserves are predicted to run out long before coal, so gas could be produced from coal by gasification. On 21 April 2017, Britain went a full day without using coal power to generate electricity for the first time since the Industrial Revolution, according to the National Grid. In April 2018, a new record was set of 55 hours without coal, which in turn was broken by a period of more than 72 hours without coal a few days later. Coal mining in the United Kingdom Coal mining