Reworked coal
This article examines the geological, economic and industrial aspects of reworked coal — an intriguing category of coal that has been transported, eroded, oxidized or otherwise altered after initial formation.…
Primary coal
This article examines coal in its many dimensions: geological origin, global distribution, methods of extraction, economic importance, statistical trends, industrial applications and the environmental and policy debates surrounding it. Coal…
Geologically immature coal
This article examines the nature, distribution, extraction, economic role and industrial importance of geologically immature coal, commonly referred to as lignite or brown coal. Often overlooked in global energy debates…
Young lignite
Younger forms of coal commonly known as lignite or brown coal occupy a unique place in the global energy landscape. Formed in relatively recent geological times, these deposits are typically…
Shivee Ovoo Coal Mine – Mongolia
The Shivee Ovoo coal mine is one of Mongolia’s notable coal-producing localities, representing the country’s abundant mineral wealth and the central role of coal in its energy and export sectors.…
Super-low-volatile coal
Super-low-volatile coal is a specialized, high-rank form of coal valued primarily for its high fixed carbon content, low volatile matter, and strong performance in metallurgical and high-temperature industrial applications. This…
Carbon-rich hard coal
This article examines the geological nature, distribution, extraction, economic importance and industrial uses of high-carbon hard coal — a group of coals valued for their high fixed carbon content and…
High-rank coal
High-rank coal occupies a distinctive place among fossil fuels. Often associated with superior energy density, lower volatile content and a higher fixed carbon fraction, this class of coal plays specific…
Crushed coal
Crushed coal is a widely used form of fossil fuel obtained by mechanically reducing the size of mined coal to meet the requirements of various industrial processes. This article examines…
Carbon coal
The following article examines the geological nature, global distribution, economic importance, and environmental implications of coal — a sedimentary rock that has powered industry and societies for centuries. It covers…
