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RT @mininghistory: Interesting article on 'managenese madness' suffered by miners in mid-20th century Chile. Prolonged exposure to managen…
RT @mininghistory: Interesting article on 'managenese madness' suffered by miners in mid-20th century Chile. Prolonged exposure to managen…
Interesting article on 'managenese madness' suffered by miners in mid-20th century Chile. Prolonged exposure to managenese affects the nervous system and causes hallucinations. https://t.co/MxCi1NA8Bu