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29 samples matching your criteria
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Sample n°11242 : debris of crystalsMinerals: TOURMALINEYear:Country: Rwanda
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Sample n°11253 : purple plates, palm-shaped patternsMinerals: LEPIDOLITEYear: 1955Country: Rwanda
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Sample n°11546 : black crystals (5 cm) in pegmatiteMinerals: SCHORLYear: 1968Country: Rwanda
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Sample n°15787 : grey, blue (var. sapphire), one shaped sapphire (cabochon cut)Minerals: CORUNDUMYear:Country: Rwanda
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Sample n°15977 : coating and partial infilling of fossil elephant toothMinerals: VIVIANITEYear:Country: Rwanda
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Sample n°16034 : well-developed cubic crystals in altered rock matrixMinerals: PYRITE ARSENOPYRITEYear:Country: Rwanda
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Sample n°16219 : large cubic crystals, partly altered to iron oxides, in quartz massMinerals: PYRITE QUARTZYear:Country: Rwanda
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Sample n°16220 : moulds of large euhedral calcite crystals in quartz veinMinerals: CALCITE QUARTZYear:Country: Rwanda
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Sample n°17017 : reddish zircon, purple corundum (var. sapphire)Minerals: CORUNDUM ZIRCONYear:Country: Rwanda