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6 results for “Fineness” in Industry
Industry · 6 August 2026
The Scrap Trade
…ds to price faster than mine output can. · Scrap is priced off spot, adjusted for assayed fineness, then discounted for testing, refining, transport and each intermediary's margin. · High-street payouts commonly land well below spot for the contained gold; specialist refiners buy…
Ingrid Sørensen · 15 min read
Industry · 2 July 2026
Nine Nines: Inside a Modern Gold Refinery
…le market. · Provenance documentation now determines a bar's marketability as much as its fineness. · What is a doré bar? A doré bar is the semi-pure alloy poured at a mine site, typically 70–90 per cent gold with silver and base-metal impurities. It is the standard form in which…
Tomas Herrera · 12 min read
Industry · 7 August 2026
How Fake Gold Is Detected
…gold. XRF is excellent for detecting alloy fraud in jewellery and for confirming surface fineness; it is structurally incapable of seeing a core. · What does ultrasonic testing actually measure? The speed of sound through the object. Longitudinal velocity in gold is roughly 3,24…
Tomas Herrera · 15 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 · 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 · 15 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 · 13 min read
