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7 results for “Troy ounce” in Industry
Industry · 2 July 2026
Nine Nines: Inside a Modern Gold Refinery
…n case the first two disagree. Disagreements over a tenth of a per cent on a four-hundred-ounce bar are worth arguing about. · Fire assay: the referee · The determination that settles disputes is fire assay, a technique that predates the periodic table by two thousand years and h…
Tomas Herrera · 19 min read
Industry · 6 August 2026
The Scrap Trade
…d karat rather than a measured one. · Benchmark price — the reference for pure metal, per troy ounce or per gram, before anything is subtracted. Fineness adjustment — 9-karat material is 37.5 percent gold, 18-karat is 75 percent, 22-karat is 91.6 percent; stones, clasps and sprin…
Ingrid Sørensen · 16 min read
Industry · 7 August 2026
After the Cyanide
Every ounce of mined gold leaves behind roughly a tonne of processed rock and the water that carried it. What happens to that material after the last shift is the part of the industry with the lon…
Tomas Herrera · 16 min read
Industry · 7 August 2026
How Fake Gold Is Detected
…el that absorbs base metals, and the remaining precious bead is parted and weighed. It destroys the sample and takes hours, and it remains the reference standard for settlement because it measures the whole sample rather than a surface or a proxy. · How common is underkarated jew…
Tomas Herrera · 16 min read
Industry · 28 July 2026
Urban Mining: The Richest Gold Ore on Earth Is in Your Old Phone
…those goals at the design stage. · How does urban mining compare with mining on cost per ounce? It varies hugely by feedstock quality and cannot be reduced to one figure. High-grade sorted server and telecom scrap can be cheaper to process per ounce than a marginal underground d…
Tomas Herrera · 16 min read
Industry · 20 August 2026
The Refiner's Ledger
…iving a bar would need to independently re-assay it before accepting it at face value, destroying the speed and low cost that make wholesale gold trading possible. The List substitutes one round of rigorous, ongoing institutional verification for millions of redundant private one…
Tomas Herrera · 17 min read
Industry · 4 August 2026
The Gold Inside Your Phone
Industrial demand is the quietest third of the gold market: a few tenths of a gram per handset, multiplied by billions of devices, chosen not for prestige but because nothing else conducts as reliably…
Tomas Herrera · 18 min read
