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The toxic damage from mining rare elements – DW – 04/13/2021
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Geochemistry signatures of mercury in soils of the Amazon rainforest biome - ScienceDirect
Illegal gold mining in Amazon equivalent to half of Brazil's production — report - Canadian Mining Journal
Mineral industry of Peru - Wikipedia
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Zinc and Lead Mine Swallows a 400-Year-Old City, High in the Andes | National Geographic
Canastra Mountains | mountains, Brazil | Britannica
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Illegal gold represents 17% of Brazil's exports — study - MINING.COM
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