광물 데이터베이스와 크리스탈 테라피광물Retzian-(Ce)Christian Rewitzer·CC BY-SA 3.0·WikimediaRetzian-(Ce)Mn2⁺2Ce(AsO4)(OH)4Ortorombico crown IMA redefined구성Composizione (% in peso)CeOAsMnCeCerium34.9%OOxygen31.8%AsArsenic18.6%MnManganese13.7%HHydrogen1.0%어원명명 유래 cerium.