Wardha Valley Coalfield – India
The following article provides an in-depth overview of the Wardha Valley coal mining region in India, its geology, mining practices, economic importance and wider industrial and environmental contexts. The text…
Soft brown coal
Soft brown coal, commonly known as lignite, is a low-rank type of coal that plays a distinct role in the global energy mix and regional economies. Characterized by high moisture…
Inertinite-rich thermal coal
This article examines inertinite-rich thermal coal: its geological origins, where it is found and mined, its physical and chemical properties, industrial uses, economic importance, market dynamics and environmental implications. The…
San Juan Coal Mine – Colombia
The San Juan Coal Mine in Colombia represents one of the many mining sites that contribute to Colombia’s role as a major global coal producer and exporter. This article examines…
Low-caking coal
Low-caking coal is a specific category of coal defined by its limited tendency to soften, swell and fuse when heated in the absence of air. Unlike coking or strongly caking…
Non-swelling coal
This article examines the properties, distribution, economic importance and industrial uses of non-swelling coal — a category of coal defined by its limited tendency to cake or expand when heated.…
Ovoot Tolgoi Mine – Mongolia
The Ovoot Tolgoi coal site is one of Mongolia’s notable coal projects, combining significant geological resources with strategic economic importance for both local communities and regional energy markets. Located in…
Osinnikovskaya Mine – Russia
The Osinnikovskaya Mine, located in the heart of Russia’s coal-producing region, is part of the extensive network of mining sites that supply both domestic industries and international markets. This article…
Coal-to-liquid feedstock
This article examines coal as a feedstock for coal-to-liquid (CTL) processes: its geology, global occurrence, mining and supply, economic importance, statistics, industrial uses, environmental challenges and technological trends. Coal remains…









