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Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. [1]
- Coal in Poland
Poland is the second-largest coal-mining country in Europe,...
- Anthracite
Anthracite, also known as hard coal and black coal, is a...
- History of coal mining
Large-scale coal mining developed during the Industrial...
- List of countries by coal reserves
The reserve list specifies different types of coal and...
- Coal in Poland
Przykładowa struktura chemiczna węgla kamiennego. Węgle kopalne – skały osadowe powstałe w wyniku gromadzenia się i późniejszego przeobrażenia szczątków roślinnych. Złożone są z szeregu związków organicznych oraz mineralnych składników nieorganicznych i wody.
Poland is the second-largest coal-mining country in Europe, after Germany, and the ninth-largest coal producer in the world. The country consumes nearly all the coal it mines, and is no longer a major coal exporter.
Anthracite, also known as hard coal and black coal, is a hard, compact variety of coal that has a submetallic lustre. 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 coals.
Large-scale coal mining developed during the Industrial Revolution, and coal provided the main source of primary energy for industry and transportation in industrial areas from the 18th century to the 1950s. Coal remains an important energy source. [1]
The reserve list specifies different types of coal and includes countries with at least 0.1% share of the estimated world's proven reserves of coal. All data are taken from the German Federal Institute for Geosciences and Natural Resources (BGR) via BP; all numbers are in million tonnes. [1]
23 paź 2024 · Learn about coal, a solid carbon-rich fossil fuel that is used as an energy source and a chemical feedstock. Explore its geological origins, structure, properties, history, and current world distribution.
