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5 samples matching your criteria
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Sample n°8548 : quartz fragments (3 cm) with oriented black prismatic crystalsMinerals: TOURMALINEYear:Country: Congo (RDC)
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Sample n°8614 : yellow and black fragment (2 cm)Minerals: FERGUSONITEYear:Country: Congo (RDC)
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Sample n°12828 : black broken crystals in vein quartzMinerals: TOURMALINE QUARTZYear: 1971Country: Congo (RDC)
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Sample n°16823 : concentrateMinerals: ILMENITEYear:Country: Congo (RDC)
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Sample n°18959 : crystalsMinerals: COLUMBITEYear: 2019Country: Congo (RDC)