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22 samples matching your criteria
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Sample n°17417 : fragment with prominent cleavageMinerals: FERBERITEYear: 2016Country: Rwanda
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Sample n°17874 : pseudomorph after bipyramidal scheeliteMinerals: ANTHOINITEYear: 2017Country: Rwanda
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Sample n°17875 : graphitic material with coarse-crystalline muscovite bandsMinerals: GRAPHITE MUSCOVITEYear: 2017Country: Rwanda
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Sample n°17876 : coarse-crystalline fragmentsMinerals: FERBERITEYear: 2017Country: Rwanda
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Sample n°15936 : porous aggregates in vein quartzMinerals: FERBERITEYear:Country: Rwanda
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Sample n°10339 : white aggregates in fine-grained vein quartzMinerals: ANTHOINITEYear:Country: Rwanda
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Sample n°15937 : complex alterationMinerals: FERBERITE TUNGSTITEYear:Country: Rwanda
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Sample n°15942 : fragmentsMinerals: ANTHOINITE FERBERITEYear:Country: Rwanda
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Sample n°15956 : white aggregateMinerals: ANTHOINITE FERBERITEYear:Country: Rwanda
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Sample n°15973 : white aggregatesMinerals: ANTHOINITEYear:Country: Rwanda