Search
Search the whole magazine.
Full-text search across every article — headlines, decks, body copy, pull quotes, captions and FAQs — plus our editorial and legal policies.
2 results for “mercury” in Mining
Mining · 22 May 2026
The Other Supply Chain: Artisanal Mining and the Mercury Problem
…isanal and small-scale mining employs millions and is the largest source of anthropogenic mercury emissions. · Mercury amalgamation persists because it is cheap, fast and requires no capital or literacy in chemistry. · Alternatives exist — gravity concentration, borax smelting, c…
Amara Okonjo · 12 min read
Mining · 5 August 2026
Grade, Cut-off and the Arithmetic of an Open Pit
A gold mine is not a hole with gold in it. It is a spreadsheet with a hole attached — and the single number that decides which rock is ore and which rock is waste moves every time the price does. · Mo…
Amara Okonjo · 16 min read
