In the Conceicão Pit of the CVRD Itabira Complex, eastern Quadrilátero Ferrífero.
Top left: studying the hard itabirite and Top right: the soft, free digging, high grade, specularite rich itabirite ore referred to as "blue dust" which is used for pellet production. This mine is within the high strain section of the Quadrilátero Ferrífero; Lower left: View of the Conceicão Pit; Lower left: Mining the soft ore. Photographs by Mike Porter.
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