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2 results for “treasure act” in Mining
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 · 16 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. · What is artisanal and small-scale gold mining? ASGM refers to mining carried out by individuals or small groups using low-mechanisation metho…
Amara Okonjo · 12 min read
