Basis data mineral & terapi kristalMineralCarlosbarbosaiteRicardo Scholz·Public domain·WikimediaCarlosbarbosaite(UO2)2Nb2O6(OH)2·2H2OOrtorombico IMA approvedKomposisiComposizione (% in peso)UONbUUranium53.4%OOxygen25.1%NbNiobium20.8%HHydrogen0.7%EtimologiDinamai dari Carlos do Prado Barbosa.