KEDOUGOU, Senegal (AP) — The quickest way to separate gold from rock, Sadio Camara says, is with a drop of mercury. She empties a dime-sized packet of the silvery liquid into a plastic bucket of muddy ...
MEXICO CITY — In 2017, as part of an international treaty, Mexico started phasing down mercury production and eliminating its use in gold mining, citing major environmental and public health hazards.
Add Yahoo as a preferred source to see more of our stories on Google. Hugo Flores analyses a rock recently extracted from the mine in San Joaquin, Mexico (Associated Press/Fernando Llano) A drill ...
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