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3 results for “treasure act” in Mining
Mining · 19 August 2026
Nine Grams a Tonne
What does it actually cost to pull an ounce of gold out of the ground? The honest answer runs through grade decline, energy and water bills, permitting delays and the closure liabilities nobody prices un…
Amara Okonjo · 18 min read
Mining · 5 August 2026
Grade, Cut-off and the Arithmetic of an Open Pit
…load of rock. · Cut-off grade is a price-dependent accounting decision, not a geological fact: a higher gold price literally converts waste into ore. · Strip ratio — waste tonnes moved per ore tonne — is often the difference between a viable pit and an abandoned one. · Reserves a…
Amara Okonjo · 20 min read
Mining · 22 May 2026
The Other Supply Chain: Artisanal Mining and the Mercury Problem
…shifts risk rather than eliminating it. · Traceability schemes work only where miners can actually access a legal buyer at a fair price. · Women make up a substantial share of the artisanal workforce, concentrated in processing roles that carry their own distinct mercury exposure…
Amara Okonjo · 15 min read
