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11 samples matching your criteria
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Sample n°1487 : black block with white mpororoite veinMinerals: FERBERITE MPOROROITEYear: 1945Country: Congo (RDC)
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Sample n°4344 : debris of black crystals (2-4 cm)Minerals: CASSITERITEYear: 1954Country: Congo (RDC)
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Sample n°4345 : block of black crystals (4 cm)Minerals: CASSITERITEYear: 1954Country: Congo (RDC)
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Sample n°4346 : black crystal (4 cm), 'bec d'étain' twinningMinerals: CASSITERITEYear: 1954Country: Congo (RDC)
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Sample n°4347 : 'bec d'étain' twinning (2 cm)Minerals: CASSITERITEYear: 1954Country: Congo (RDC)
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Sample n°4399 : crystal aggregate (5 cm)Minerals: CASSITERITEYear: 1954Country: Congo (RDC)
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Sample n°4567 : bright brown crystals, mixed with grey cassiteriteMinerals: CASSITERITE WOLFRAMITE QUARTZYear: 1954Country: Congo (RDC)
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Sample n°16685 : crystals in matrixMinerals: CASSITERITEYear:Country: Congo (RDC)
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Sample n°17778 : crystals in rock matrixMinerals: TOPAZYear: 2017Country: Congo (RDC)
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Sample n°19299 : strongly mineralised materialMinerals: CASSITERITE TOPAZYear: 2020Country: Congo (RDC)