Database minerali e cristalloterapiaMineraliNyholmiteNyholmiteCd3Zn2(AsO3OH)2(AsO4)2·4H2OMonoclino IMA approvedComposizioneComposizione (% in peso)CdOAsZnCdCadmium30.7%OOxygen29.2%AsArsenic27.3%ZnZinc11.9%HHydrogen0.9%EtimologiaNome derivato da Ronald Sydney Nyholm.