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30 samples matching your criteria
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Sample n°13443 : crystal (5 cm), var. amazoniteMinerals: MICROCLINEYear: 1976Country: Madagascar
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Sample n°13444 : brown prismatic crystal in pegmatiteMinerals: TOURMALINEYear: 1976Country: Madagascar
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Sample n°13445 : concretionMinerals: CHALCEDONY (quartz)Year: 1976Country: Madagascar
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Sample n°13446 : black veins in green rock, var. labradoriteMinerals: PLAGIOCLASEYear: 1976Country: Madagascar
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Sample n°13447 : rounded crystals in highly altered rockMinerals: GARNETYear: 1976Country: Madagascar
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Sample n°13448 : stony prismatic crystal with square cross-section (5 cm)Minerals: ZIRCONYear: 1976Country: Madagascar
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Sample n°13449 : hexagonal barrelsMinerals: CORUNDUMYear: 1976Country: Madagascar
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Sample n°13450 : large blue pieceMinerals: CORUNDUM TOURMALINEYear: 1976Country: Madagascar
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Sample n°13451 : black crystals (1 cm) in calciteMinerals: DIOPSIDEYear: 1976Country: Madagascar
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Sample n°13452 : barrelMinerals: CORUNDUMYear: 1976Country: Madagascar