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  5 samples matching your criteria
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        Sample n°6413 : mixed fragment (2 cm)Minerals: BISMUTHINITE BISMUTITE GOETHITEYear: 1958Country: Congo (RDC)
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        Sample n°6414 : mixed fragments (1 cm)Minerals: BISMUTHINITE BISMUTITE BISMITEYear: 1958Country: Congo (RDC)
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        Sample n°14310 : yellow-grey earthy debris (5 cm)Minerals: BISMUTHINITEYear: 1983Country: Rwanda
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        Sample n°15955 : fragmentsMinerals: BISMUTHINITEYear:Country: Rwanda
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        Sample n°18762 : rounded fragmentsMinerals: BISMUTHINITEYear:Country: Rwanda