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37 samples matching your criteria
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Sample n°6147 : pink and brown zoned block with enclosed black metallic tetrahedriteMinerals: BARYTE SIDERITE TETRAHEDRITEYear:Country: Congo (RDC)
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Sample n°6148 : massive specular metallic black materialMinerals: TENNANTITEYear:Country: Congo (RDC)
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Sample n°6421 : black concentrate (3 mm)Minerals: TAPIOLITEYear: 1958Country: Congo (RDC)
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Sample n°8021 : white prismatic crystals (1-5 cm) in vein with microgranular black tourmalineMinerals: TOPAZ TOURMALINEYear:Country: Congo (RDC)
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Sample n°8023 : thick vein with prismatic topaz crystals and bundles of muscovite platesMinerals: MUSCOVITE TOPAZYear:Country: Congo (RDC)
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Sample n°17766 : fragmentsMinerals: FERBERITE ANTHOINITEYear: 2017Country: Congo (RDC)
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Sample n°17773 : large tabular crystal fragmentMinerals: THOREAULITEYear: 2017Country: Congo (RDC)