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15 samples matching your criteria
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Sample n°3522 : white chervetite crystals, yellow mottramite powderMinerals: CHERVETITE MOTTRAMITEYear:Country: Congo (RDC)
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Sample n°7111 : massive blockMinerals: HEMATITEYear: 1959Country: Congo (RDC)
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Sample n°7112 : dark brown earthy blockMinerals: MANGANESE OXIDESYear: 1951Country: Congo (RDC)
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Sample n°7241 : small black crystals in quartziteMinerals: DESCLOIZITEYear:Country: Congo (RDC)
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Sample n°7241.1 : small crystals in quartziteMinerals: MOTTRAMITEYear:Country: Congo (RDC)