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152 samples matching your criteria
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Sample n°19643 : crystal fragmentsMinerals: FERBERITEYear:Country: Rwanda
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Sample n°19674 : group of octahedral ferberite crystals, with hydrokenoelsmoreite coating, var ferrotungstiteMinerals: FERBERITE HYDROKENOELSMOREITEYear: 2022Country: Rwanda
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Sample n°19732 : large cleavage fragmentMinerals: FERBERITEYear: 2022Country: Congo (RDC)
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Sample n°19755 : fragment with contrasting cleavage and rough surfaceMinerals: FERBERITEYear: 2022Country: Congo (RDC)
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Sample n°19773 : large cleavage fragment (20 cm)Minerals: FERBERITEYear: 2022Country: Congo (RDC)
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Sample n°19776 : coarse-crystalline ferberite with associated acicular tourmalineMinerals: FERBERITE TOURMALINEYear: 2022Country: Congo (RDC)
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Sample n°19778 : large octahedral crystalMinerals: FERBERITEYear: 2022Country: Congo (RDC)
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Sample n°19784 : altered ferberite in quartz veinMinerals: FERBERITE TUNGSTITEYear: 2022Country: Congo (RDC)
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Sample n°19848 : coarse-crystalline ferberite, partially alteredMinerals: TUNGSTITE FERBERITEYear: 2022Country: United Kingdom
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Sample n°20118 : coarse-crystalline, in quartz veinMinerals: FERBERITEYear: 2023Country: Algeria