• August 5, 2026
The Forgotten Coal Mines Beneath Modern Cities

Hidden beneath bustling streets and gleaming skyscrapers lies a labyrinth of tunnels and galleries, remnants of a bygone era when coal powered booming cities and drove unprecedented growth. These neglected…

  • August 1, 2026
The Environmental Legacy of 19th-Century Coal Mining

The saga of coal stretches back millions of years, yet its pivotal role in the 19th century reshaped landscapes, societies, and the very fabric of industrial progress. As the world…

  • July 17, 2026
Dull coal

This article examines the topic of dull coal — a descriptive classification of coal distinguished by its matte appearance, particular physical and chemical characteristics, and specific industrial uses. Dull coal…

  • July 10, 2026
How Coal Transformed the British Empire’s Economy

The discovery and exploitation of coal reserves in Britain fueled a transformation that resonated through industry, finance, and society. From powering the steam engine to shaping global trade routes, this…

  • July 2, 2026
How Coal Powered the Expansion of Railways and Shipping

The evolution of mineral extraction has shaped societies and economies for centuries. Among the various resources, coal holds a pivotal place as both a catalyst for industrial expansion and a…

  • June 29, 2026
Plastic coal

This article explores the phenomenon commonly called “plastic coal” — coal that exhibits a distinctive plasticity or caking behavior when heated — and the many technical, economic and environmental aspects…

  • 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…

  • May 25, 2026
Mbali Coal Mine – South Africa

The Mbali Coal Mine is one of the many coal-producing sites contributing to South Africa’s long-standing role as a global coal supplier and a cornerstone of the country’s domestic energy…

  • May 18, 2026
La Guajira Coal Mine – Colombia

The La Guajira coal mining complex in Colombia is one of the most significant and controversial mining areas in Latin America. Located in the far northeast of the country on…

  • May 7, 2026
Gasification-grade bituminous coal

Gasification-grade bituminous coal is a specific class of coal valued for its suitability in conversion processes that produce synthesis gas (syngas) — a mixture primarily of carbon monoxide and hydrogen…