광물 데이터베이스와 크리스탈 테라피광물Xianhuaite-(La)Xianhuaite-(La)K2LaNb5O15Tetragonale crown IMA approved구성Composizione (% in peso)NbOLaKNbNiobium50.4%OOxygen26.0%LaLanthanum15.1%KPotassium8.5%