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32 samples matching your criteria
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Sample n°17488 : rounded fragments, var. plumbomicroliteMinerals: MICROLITEYear: 2017Country: Congo (RDC)
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Sample n°17776 : yellowish brown grains with bright lustreMinerals: MICROLITEYear: 2017Country: Congo (RDC)
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Sample n°16829 : massive blockMinerals: MICROLITEYear: 1971Country: Congo (RDC)
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Sample n°15953 : concnetrateMinerals: MICROLITEYear:Country: Rwanda
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Sample n°15938 : fragmentMinerals: MICROLITE TANTALITEYear:Country: Rwanda
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Sample n°9295 : large block with prominent cleavageMinerals: MICROLITEYear:Country: Rwanda
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Sample n°16066 : fragmentsMinerals: MICROLITEYear:Country: Rwanda
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Sample n°15983 : white concentrateMinerals: MICROLITEYear:Country: Rwanda
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Sample n°16070 : fragmentsMinerals: MICROLITEYear: 1974Country: Uganda
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Sample n°15981 : concentrateMinerals: COLUMBITE TANTALITE MICROLITEYear:Country: Rwanda