광물 데이터베이스와 크리스탈 테라피광물NyholmiteNyholmiteCd3Zn2(AsO3OH)2(AsO4)2·4H2OMonoclino IMA approved구성Composizione (% in peso)CdOAsZnCdCadmium30.7%OOxygen29.2%AsArsenic27.3%ZnZinc11.9%HHydrogen0.9%어원명명 유래 Ronald Sydney Nyholm.