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35 samples matching your criteria
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Sample n°18750 : black plates with bright lustreMinerals: FERBERITEYear: 2019Country: Rwanda
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Sample n°18751 : ferberite with scattered tungstite along surfaceMinerals: FERBERITE TUNGSTITEYear: 2019Country: Rwanda
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Sample n°18752 : fragments of altered ferberite with pale to bright yellow tungstiteMinerals: FERBERITE TUNGSTITEYear: 2019Country: Rwanda
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Sample n°18753 : fine-grained white material with ferberite remnantsMinerals: ANTHOINITE FERBERITEYear: 2019Country: Rwanda
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Sample n°18754 : large altered ferberite crystal in matrixMinerals: ANTHOINITE FERBERITEYear: 2019Country: Rwanda