Quartz pebbles in dark carbonaceous matrix from the Carbon Leader Reef, Witwatersrand Basin, South Africa. Primary commodity: Gold, uranium.

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Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, africa, basin, carbon, carbonaceous, earth, geological, geology, gold, leader, matrix, mineral, mineralogy, ore, quartz, reef, rock, science, south, specimen, uranium, witwatersrand