Basis data mineral & terapi kristalMineralXianhuaite-(Ce)Xianhuaite-(Ce)K2CeNb5O15Tetragonale crown IMA approvedKomposisiComposizione (% in peso)NbOCeKNbNiobium50.3%OOxygen26.0%CeCerium15.2%KPotassium8.5%