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12 samples matching your criteria
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Sample n°6133 : reworked bluish black crystalMinerals: COLUMBITE TANTALITEYear:Country: Congo (RDC)
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Sample n°6134 : reworked bluish black crystalMinerals: COLUMBITE TANTALITEYear:Country: Congo (RDC)
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Sample n°6416 : yellow block (2 cm)Minerals: MICROLITEYear: 1958Country: Congo (RDC)
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Sample n°8563 : stony debrisMinerals: BERYLYear:Country: Congo (RDC)
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Sample n°8603 : corroded black crystal (3 cm)Minerals: COLUMBITEYear:Country: Congo (RDC)
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Sample n°8604 : mixed yellow and black debtrisMinerals: COLUMBITE MICROLITEYear:Country: Congo (RDC)
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Sample n°12831 : debris of vein (10 cm)Minerals: TANTALITEYear: 1971Country: Congo (RDC)
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Sample n°12832 : black scoriaceous blocks (2 cm)Minerals: COLUMBITE TANTALITEYear: 1971Country: Congo (RDC)
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Sample n°12833 : yellow massive blocksMinerals: MICROLITEYear: 1971Country: Congo (RDC)
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Sample n°12836 : heavy grey-yellow microlite with enclosed black tantaliteMinerals: MICROLITE TANTALITEYear: 1971Country: Congo (RDC)