Michael Gwarisa in Bindura Without gloves or protective equipment, 32-year-old artisanal miner Mavies Gwiriko carefully swirls mercury with crushed gold ore under the scorching Bindura sun, unaware that the toxic metal in her hands can damage the brain, kidneys, lungs, and nervous system. At Museveni Mine in Bindura, Gwiriko moves rhythmically in clockwise and anticlockwise