• 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…

  • June 6, 2026
Naryn Sukhait Coal Mine – Mongolia

The Naryn Sukhait coal deposit, located in the southern reaches of Mongolia near the Chinese border, is one of the country’s better-known coal sites and a significant element of the…

  • June 2, 2026
Nacala Corridor Mines – Mozambique

The Nacala Corridor is a major transport and resource-development axis in southeastern Africa that has reshaped Mozambique’s mining landscape. Centered on the rich coal-bearing basin around Moatize in Tete Province…

  • May 31, 2026
Mucanha-Vuzi Mine – Mozambique

The following article examines the Mucanha-Vuzi mining area within the broader coal-mining landscape of central Mozambique. It covers location and geology, the types of coal encountered, economic and industrial significance,…

  • May 30, 2026
Brown coal briquettes

Brown coal briquettes — a form of compacted lignite — have played a significant role in regional energy systems, industrial processes and household heating for more than a century. This…

  • May 28, 2026
Lignite briquettes

Lignite briquettes, a processed form of low-rank coal commonly called lignite or brown coal, play a distinctive role in regional energy systems and small-scale heating applications. This article explores where…

  • May 28, 2026
Montelíbano Mine – Colombia

This article examines the mining activity associated with Montelíbano, a municipality in the department of Córdoba, Colombia, focusing on the principal operation in the area, its mineral type, economic and…

  • May 26, 2026
Industrial-grade lignite

Industrial-grade lignite, often termed brown coal, is a distinctive type of coal that occupies an important but controversial position in the global energy and industrial landscape. Characterized by relatively low…

  • May 23, 2026
Thermal middlings

Thermal middlings are an often-overlooked but important fraction of coal that plays a practical role across mining, coal preparation and power-generation value chains. This article explains what thermal middlings are,…