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7 results for “Lost-wax casting” in Industry
Industry · 4 August 2026
The Gold Inside Your Phone
…helmingly prefer the cosmetic result, and dentists prefer materials that avoid an outside casting laboratory. What remains is concentrated among older patients with existing restorations and a few markets where a gold tooth still carries social status. · Why is e-waste recycling…
Tomas Herrera · 18 min read
Industry · 7 August 2026
How Fake Gold Is Detected
…— not any single instrument. · Visual and provenance check: refiner marks, serial number, casting texture, and whether the bar has a documented custody record. Most fakes fail here, on details a specialist notices instantly. Dimensional gauging: calipers to a hundredth of a milli…
Tomas Herrera · 16 min read
Industry · 2 July 2026
Nine Nines: Inside a Modern Gold Refinery
…mes blockchain-based, sometimes a simpler centralised database — to a bar at the point of casting, intended to travel with it through every subsequent sale. The technology is not the hard part; getting mine sites, transporters, refiners and end buyers all to actually use the same…
Tomas Herrera · 19 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 longest…
Tomas Herrera · 16 min read
Industry · 20 August 2026
The Refiner's Ledger
Somewhere between a mine's doré bar and a Good Delivery brick sits a chain of chlorination furnaces, electrolytic cells, assay labs and accreditation committees that decides which gold the world's mar…
Tomas Herrera · 17 min read
Industry · 6 August 2026
The Scrap Trade
Roughly a quarter of the world's annual gold supply has been gold before. It arrives as broken chains, single earrings and dental crowns, and it moves through a chain of intermediaries that most selle…
Ingrid Sørensen · 16 min read
Industry · 28 July 2026
Urban Mining: The Richest Gold Ore on Earth Is in Your Old Phone
A tonne of good underground ore holds a few grams of gold. A tonne of discarded circuit boards can hold two hundred. So why is most of it still going into landfill? · Concentration, not tonnage, is wh…
Tomas Herrera · 16 min read
