Artisanal mining. Bags of gossan stone ready for processing. Iron in the stone has rusted on contact with the air, giving it a deep red colour. The pr

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Artisanal mining. Bags of gossan stone ready for processing. Iron in the stone has rusted on contact with the air, giving it a deep red colour. The presence of iron indicates the presence of other metals, including gold. The stone will be ground to extract these metals. Photographed in Macalder, Kenya.

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Size: 4752px × 3168px
Photo credit: © PHIL HILL/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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