광물 데이터베이스와 크리스탈 테라피광물Retzian-(Nd)Retzian-(Nd)Mn2⁺2(Nd,Ce,La)(AsO4)(OH)4 IMA approved구성Composizione (% in peso)NdOAsMnNdNeodymium35.5%OOxygen31.5%AsArsenic18.4%MnManganese13.5%HHydrogen1.0%어원명명 유래 neodymium.