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38 samples matching your criteria
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Sample n°6098 : breccious blockMinerals: BARYTEYear:Country: Congo (RDC)
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Sample n°6506 : purple block, var. pholeriteMinerals: KAOLINITEYear: 1938Country: Zimbabwe
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Sample n°6507 : crystalline material on vein quartzMinerals: PYRITE QUARTZ SULPHURYear:Country: Congo (Congo-Brazzaville)
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Sample n°6099 : red breccious rock with quartz cementMinerals: QUARTZ GOETHITEYear: 1957Country: Congo (RDC)
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Sample n°6100 : diorite, with plagioclase and hornblende as principal componentsMinerals: PLAGIOCLASE HORNBLENDEYear: 1957Country: Congo (RDC)
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Sample n°17265 : lath-shaped crystals in rock matrix, var. imerinite (type locality material)Minerals: MAGNESIO-ARFVEDSONITEYear:Country: Madagascar
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Sample n°17266 : villiaumite in nepheline syenite matrixMinerals: VILLIAUMITEYear:Country: Guinea
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Sample n°17376 : phantom quartzMinerals: QUARTZYear: 2016Country: Congo (RDC)