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65 samples matching your criteria
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Sample n°653 : concentrate (3 mm)Minerals: KYANITEYear: 1917Country: Congo (RDC)
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Sample n°676 : impregnations in quartzMinerals: HEMATITEYear: 1926Country: Congo (RDC)
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Sample n°677 : vein (0.5 cm) in quartzMinerals: HEMATITE QUARTZYear: 1913Country: Congo (RDC)
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Sample n°679 : broken crystalsMinerals: CASSITERITEYear: 1926Country: Congo (RDC)
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Sample n°680 : square cross-sections in black schist, var. chiastoliteMinerals: ANDALUSITEYear: 1913Country: Congo (RDC)
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Sample n°684 : mineralised veinsMinerals: PYRITE QUARTZYear: 1913Country: Congo (RDC)
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Sample n°686 : red massive hematite in muscovite-bearing pegmatiteMinerals: HEMATITE MUSCOVITEYear: 1913Country: Congo (RDC)
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Sample n°687 : black crystals in greisenMinerals: CASSITERITEYear: 1913Country: Congo (RDC)
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Sample n°688 : massive red hematite in pegmatiteMinerals: HEMATITE MUSCOVITEYear: 1913Country: Congo (RDC)
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Sample n°689 : black plates (5 cm)Minerals: CASSITERITEYear: 1913Country: Congo (RDC)