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3 samples matching your criteria
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Sample n°17174 : nodular aggregateMinerals: MANGANESE OXIDESYear: 2015Country: Congo (RDC)
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Sample n°17175 : thin stalactitic plateMinerals: MANGANESE OXIDESYear: 2015Country: Congo (RDC)
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Sample n°17193 : large-diameter core sectionMinerals: MANGANESE OXIDESYear:Country: Congo (RDC)