• July 2, 2026
Coal with high vitrinite content

Coal with high vitrinite content represents a distinct and economically important category of coal whose physical and chemical characteristics influence its use across power generation, metallurgical processes, chemical conversion and…

  • July 1, 2026
Sangatta Coal Mine – Indonesia

The Sangatta coal complex in East Kalimantan, Indonesia, is one of the country’s most recognizable and historically important mining areas. Located within the Kutai Basin, Sangatta encompasses large open-pit operations…

  • June 30, 2026
San Roque Coal Mine – Colombia

The San Roque Coal Mine occupies a notable place within Colombia’s broad and historically important mining landscape. This article reviews the mine’s geological setting, the types of resources recovered, its…

  • June 26, 2026
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…

  • June 26, 2026
Revuboe South – Mozambique

The Revuboe South site, located within Mozambique’s prolific coal-bearing region, is one of several important mining areas that have attracted international attention and investment over the past two decades. This…

  • June 25, 2026
Rampa Norte Coal Mine – Colombia

The Rampa Norte Coal Mine is one of the many mining sites located in Colombia’s rich northern coal belt. This article examines its geographic setting, what is extracted, the type…

  • June 23, 2026
Quintette Mine – Canada

The Quintette Mine, situated in northeastern British Columbia, Canada, is one of the better-known coal operations in the Peace River region. Over the decades it has played a role in…

  • June 19, 2026
How Coal Miners Became Symbols of Strength and Sacrifice

The story of coal is one of resilience, power, and transformation. From fueling the engines of the first industrial revolutions to influencing today’s financial markets, this humble black rock has…

  • June 12, 2026
Optimum Coal Mine – South Africa

The Optimum Coal Mine, located in South Africa’s rich Highveld coalfields, is one of the better-known coal operations in the Mpumalanga/Ogies region. This article summarizes its location, geological characteristics, the…

  • June 9, 2026
Composite coal

This article examines the subject commonly referred to as composite coal — a term that can denote both geological composite samples and engineered blends of different coal types used to…