Author
Jack Hartley
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Asteroid Mining: Economics, Technology and the Distance Problem
Asteroid mining is possible but not yet an industry. Why water may come before platinum, what the law says and why valuations…
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Tantalum: Uses, Supply and the Mineral Behind Tiny Capacitors
Tantalum makes tiny, reliable capacitors possible. Its uses, where it is mined, what coltan is, and why traceability dominates the market.
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Zimbabwe Diamond Mining: Rich Deposits, Difficult Economics
How the Marange fields made Zimbabwe a major diamond producer, why volume is not value, and the long dispute over where the…
Diamonds · Marange, Zimbabwe
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Silver Mining: From Primary Mines to a By-Product Metal
Most silver is a by-product of lead, zinc, copper and gold mines. Where it is mined, why supply ignores price, and what…
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Pink Salt Mine: Inside Pakistan’s Khewra Salt Mine
Khewra in Pakistan is the mine behind most Himalayan pink salt. Where it is, why the salt is pink, how it is…
Halite · Punjab, Pakistan
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Deepest Mine in the World: Inside Mponeng’s 4-Kilometre Descent
Mponeng in South Africa is the deepest mine in the world, more than 4 km down. How miners handle rock heat, pressure…
Gold · Gauteng, South Africa
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Escondida Mine: The Copper Giant of the Atacama
Escondida in Chile is the world’s largest copper mine by production. Who owns it, how it works, and how it gets water…
Copper · Antofagasta Region, Chile
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Salar de Atacama: Lithium Brine Beneath the Salt Flat
How lithium is extracted from brine under Chile’s Salar de Atacama, who operates there, and why water is at the heart of…
Lithium and potassium · Antofagasta Region, Chile