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168 samples matching your criteria
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Sample n°10660 : mixed phosphates (15 cm)Minerals: HUREAULITE LITHIOPHILITE TAVORITE BARBOSALITE PHOSPHOSIDERITEYear: 1965Country: Rwanda
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Sample n°10662 : brown bundles and fibro-radial layers on manganese oxidesMinerals: FRONDELITE CRYPTOMELANEYear: 1965Country: Rwanda
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Sample n°10663 : pink porcelanous variscite, white wavellite crustMinerals: VARISCITE WAVELLITEYear:Country: Rwanda
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Sample n°10664 : layered white blocks (12 cm)Minerals: AMBLYGONITEYear:Country: Rwanda
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Sample n°10665 : white blocks (15 cm)Minerals: AMBLYGONITEYear:Country: Rwanda
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Sample n°10666 : white blocks (10 cm)Minerals: AMBLYGONITEYear:Country: Rwanda
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Sample n°10667 : white and blue blocks with various spotsMinerals: AMBLYGONITE BERTOSSAITE PALERMOITE ALLUAUDITE CHILDRENITE SCORZALITEYear:Country: Rwanda
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Sample n°10668 : black tabular crystals (1-7 cm)Minerals: COLUMBITEYear:Country: Rwanda
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Sample n°10669 : grey cryptocrystalline fragment with white crustMinerals: SPODUMENE FELDSPARYear:Country: Rwanda
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Sample n°10670 : white blocks (10 cm) and small green fluorapatite crystalsMinerals: ALBITE FLUORAPATITEYear:Country: Rwanda