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103 samples matching your criteria
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Sample n°17880 : large porous blockMinerals: FERBERITEYear: 2017Country: Rwanda
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Sample n°17881 : coarse-crystalline aggregateMinerals: FERBERITEYear: 2017Country: Rwanda
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Sample n°17882 : crystals in quartz matrixMinerals: FERBERITEYear: 2017Country: Rwanda
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Sample n°17883 : pyramidal crystalMinerals: FERBERITEYear: 2017Country: Rwanda
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Sample n°17884 : coarse-crystalline aggregateMinerals: FERBERITEYear: 2017Country: Rwanda
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Sample n°17885 : large fragmentsMinerals: COLUMBITE TANTALITEYear: 2017Country: Rwanda
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Sample n°17886 : large crystalMinerals: FERBERITEYear: 2017Country: Rwanda
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Sample n°17887 : fragment with possible assicated scheeliteMinerals: 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