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6 results for “strip ratio mining” in Industry
Industry · 28 July 2026
Urban Mining: The Richest Gold Ore on Earth Is in Your Old Phone
…uit boards can hold two hundred. So why is most of it still going into landfill? · Concentration, not tonnage, is what makes an ore economic — and e-waste is extraordinarily concentrated by mining standards. · The bottleneck is collection and logistics, not metallurgy; the chemis…
Tomas Herrera · 13 min read
Industry · 7 August 2026
After the Cyanide
…ontinue for centuries, which makes it the single largest long-term liability in hard-rock mining. · Why do tailings dams fail? Most failures trace to construction method, water management or foundation conditions rather than to a single dramatic event. Upstream-raised dams, built…
Tomas Herrera · 17 min read
Industry · 2 July 2026
Nine Nines: Inside a Modern Gold Refinery
…ia routes, trades throughput for a smaller locked inventory and is favoured by smaller operations. · The cast, and what is stamped on it · Finished gold is remelted and cast to specification. For the wholesale market the format is the Good Delivery bar: nominally 400 troy ounces,…
Tomas Herrera · 12 min read
Industry · 6 August 2026
The Scrap Trade
…weight and the assumed fineness written down before any discussion of price. Reputable operations do this as standard. · What happens to my gold after I sell it? It is consolidated into lots, sold on to a refiner, melted, sampled and assayed properly, then refined — typically by…
Ingrid Sørensen · 15 min read
Industry · 7 August 2026
How Fake Gold Is Detected
…identifies elements present and quantifies them well. It takes seconds, requires no preparation, and damages nothing, which is why every serious dealing room owns one. · Its limitation is not a calibration problem to be solved but a physical one. The exciting radiation penetrate…
Tomas Herrera · 15 min read
Industry · 4 August 2026
The Gold Inside Your Phone
…w much gold is in a smartphone? Roughly 0.2 to 0.35 grams, depending on the model and generation, spread across connector plating, printed-circuit-board surface finish, and the fine wires or bumps connecting silicon dies to their packages. At typical prices that is a few dollars…
Tomas Herrera · 15 min read
