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10 samples matching your criteria
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Sample n°9189 : layer of black tourmalinite in quartziteMinerals: TOURMALINEYear:Country: Rwanda
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Sample n°9191 : clear debris (3-8 cm)Minerals: QUARTZYear:Country: Rwanda
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Sample n°9195 : debrisMinerals: CASSITERITEYear:Country: Rwanda
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Sample n°9207 : white clayey block (5 cm)Minerals: KAOLINITEYear:Country: Rwanda
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Sample n°9209 : small black needles in pink altered schistMinerals: TOURMALINEYear:Country: Rwanda
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Sample n°9216 : block of clear quartz (16 cm)Minerals: QUARTZYear:Country: Rwanda
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Sample n°10630 : brown anhedral crystals in yellow micaceous quartz, block (7 cm) and larger pieceMinerals: CASSITERITEYear:Country: Rwanda
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Sample n°10631 : black tablets (8 cm) in vein quartzMinerals: COLUMBITEYear:Country: Rwanda
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Sample n°17866 : fine needles in schistMinerals: TOURMALINEYear: 2017Country: Rwanda
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Sample n°17867 : intergrowthsMinerals: CASSITERITEYear: 2017Country: Rwanda