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3 results for “Cyanide leaching” in Mining
Mining · 5 August 2026
Grade, Cut-off and the Arithmetic of an Open Pit
…is as precious a commodity as the metal itself. Modern gold processing, particularly heap leaching and milling, requires vast quantities of water to function. As climate patterns shift and local competition for water resources intensifies, securing a reliable water supply has bec…
Amara Okonjo · 20 min read
Mining · 22 May 2026
The Other Supply Chain: Artisanal Mining and the Mercury Problem
…l or literacy in chemistry. · Alternatives exist — gravity concentration, borax smelting, cyanide in controlled plants — but each shifts risk rather than eliminating it. · Traceability schemes work only where miners can actually access a legal buyer at a fair price. · Women make…
Amara Okonjo · 15 min read
Mining · 19 August 2026
Nine Grams a Tonne
…ming a bigger constraint than gold price for new mines? Ore processing, particularly heap leaching and flotation, requires large volumes of water, and many of the world's most prospective new gold districts sit in arid or water-stressed regions of Latin America, southern Africa a…
Amara Okonjo · 18 min read
