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319 samples matching your criteria
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Sample n°1701 : rust-coloured black crystalsMinerals: ILMENITE GOETHITEYear:Country: Congo (RDC)
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Sample n°1702 : manganese-bearing lateriteMinerals: PYROLUSITEYear: 1966Country: Congo (RDC)
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Sample n°1709 : breccious materialMinerals: BARYTEYear:Country: Congo (RDC)
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Sample n°1710 : altered cubic pyrite crystals (1 cm)Minerals: HEMATITEYear:Country: Congo (RDC)
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Sample n°1743 : oxidised ore in breccious limestoneMinerals: CHALCOCITE KATANGITE (plancheite) MALACHITEYear:Country: Congo (RDC)
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Sample n°1751 : fine-grained olive-green mottramite on limestoneMinerals: MOTTRAMITE CHALCEDONY (quartz)Year:Country: Congo (RDC)
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Sample n°1754 : breccious oxidised oreMinerals: MALACHITE CHALCOCITEYear:Country: Congo (RDC)
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Sample n°1759 : botryoidal, in geodeMinerals: CHALCEDONY (quartz)Year:Country: Congo (RDC)
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Sample n°1763 : yellow ochrous material on amphiboliteMinerals: GOETHITE CHALCOPYRITE QUARTZYear:Country: Congo (RDC)
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Sample n°1764 : contact between pegmatite and manganese oxide occurrenceMinerals: MANGANESE OXIDES MUSCOVITEYear:Country: Congo (RDC)