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19 samples matching your criteria
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Sample n°12612 : hexagonal crystals in pegmatiteMinerals: PHLOGOPITEYear: 1971Country: Tanzania
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Sample n°12613 : large blue crystal (20 cm)Minerals: KYANITEYear: 1971Country: Tanzania
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Sample n°12614 : rounded black crystal (25 cm)Minerals: ILMENITEYear: 1971Country: Tanzania
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Sample n°12615 : sample with uraninite, canary-yellow phosphuranylite crystals, yellow-orange kasolite nodules, white uranophane fibres, metamict zirconMinerals: PHOSPHURANYLITE URANINITE KASOLITE LIZARDITE URANOPHANE ZIRCONYear: 1971Country: Tanzania
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Sample n°14107 : plates (10 cm)Minerals: MUSCOVITEYear: 1984Country: Tanzania
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Sample n°14489 : var. ruby (60.59 ct)Minerals: CORUNDUMYear: 1992Country: Tanzania
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Sample n°14490 : var. ruby (8.01 ct)Minerals: CORUNDUMYear: 1992Country: Tanzania
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Sample n°14491 : dark reddish fragments (2.76 ct)Minerals: GARNETYear: 1992Country: Tanzania
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Sample n°14492 : var. ruby (5.19 ct), shapedMinerals: CORUNDUMYear: 1992Country: Tanzania