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105 samples matching your criteria
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Sample n°2482 : small geodes in quartziteMinerals: CHALCEDONY (quartz) QUARTZYear:Country: Congo (RDC)
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Sample n°2483 : concretionary geodic blockMinerals: CHALCEDONY (quartz) QUARTZYear:Country: Congo (RDC)
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Sample n°2484 : concretionary geodic blockMinerals: CHALCEDONY (quartz) QUARTZYear:Country: Congo (RDC)
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Sample n°3128 : sample with autunite covered by chalcedony, on micaschist with tourmalineMinerals: CHALCEDONY (quartz) AUTUNITE TOURMALINEYear: 1952Country: Congo (RDC)
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Sample n°3187 : red veinlet in quartzMinerals: CHALCEDONY (quartz) QUARTZYear: 1947Country: Congo (RDC)
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Sample n°3326 : sorted concentratesMinerals: ANDALUSITE GARNET ILMENITE MAGNETITE CHALCEDONY (quartz) KYANITE STAUROLITE QUARTZ TOURMALINE CHRYSOBERYLYear:Country: Congo (RDC)
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Sample n°3520 : pink material on iron-bearing rockMinerals: CHALCEDONY (quartz) QUARTZYear:Country: Congo (RDC)
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Sample n°3527 : veined green blockMinerals: CHALCEDONY (quartz) QUARTZYear:Country: Congo (RDC)
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Sample n°3535 : sample with long prismatic uranophane-beta crystals, uraninite nodules, traces of meta-autuniteMinerals: META-AUTUNITE PYRITE URANINITE URANOPHANE-BETA CHALCEDONY (quartz)Year: 1953Country: France
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Sample n°3536 : sample with well-developed beige parsonsite crystals, smoky quartzMinerals: PARSONSITE CHALCEDONY (quartz) METATORBERNITE QUARTZYear: 1953Country: France