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Vanadium’s potential in grid-scale energy storage

The transition to a low-carbon electricity system requires not only abundant renewable generation but also reliable, affordable methods to store energy at scale. Vanadium-based technologies, and in particular the vanadium redox flow battery, are attracting renewed attention because they offer a distinctive combination of characteristics valuable for grid-scale energy storage. This article examines the science […]

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Zircon – (mineral)

Zircon is a small but immensely informative mineral whose durability and chemical composition make it indispensable across geology, industry and gemology. This article explores the mineral’s chemistry, crystallography, global occurrences, scientific applications and cultural uses. Along the way it highlights remarkable discoveries enabled by zircons and the reasons this mineral remains a focus of modern

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Spinel – (stone)

Spinel is a gemstone with a long and fascinating story that often hides in plain sight behind more famous stones. Although it has been admired for centuries, its identity was sometimes mistaken for other minerals, which only adds to its intrigue. This article explores the geological origins of spinel, its physical and chemical characteristics, the

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Beryl – (mineral)

Beryl is a fascinating mineral that sits at the crossroads of geology, gemology and industry. Belonging to the cyclosilicate family, it can appear in a rainbow of colors and sizes, from delicate pale stones to large, gem-quality crystals coveted by collectors and jewelers. This article examines the mineral’s chemistry and structure, the places where it

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Foskor Phalaborwa Mine – South Africa – Phosphate

The Foskor Phalaborwa operation is one of South Africa’s best known phosphate-related industrial sites, located in the mineral-rich region of northern Limpopo. This article explores where the mine sits, what commodities it produces, its broader economic significance, and several interesting aspects—from logistics and processing to social and environmental dimensions. The account aims to provide a

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Chalcedony – (stone)

Chalcedony is a fascinating member of the quartz family, admired for its subtle colors, fine texture and long history of human use. This article explores its natural formation, global occurrences, diverse varieties, practical and artistic applications, and cultural significance. Readers will find geological explanations, tips for collectors and lapidaries, information on synthetics and imitations, and

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Chrysocolla – (stone)

Chrysocolla is a vivid and variable mineral beloved by collectors, jewelers, and cultural historians alike. Its striking blue-green hues and intimate association with copper-rich environments give it a distinctive place among secondary copper minerals. This article explores where chrysocolla is found, how it forms, its practical and cultural uses, and several intriguing facts that connect

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