Database minerali e cristalloterapiaMineraliHydroxyledgrewiteHydroxyledgrewiteCa9(SiO4)4(OH)2Monoclino IMA approvedComposizioneComposizione (% in peso)CaOSiCaCalcium47.3%OOxygen37.7%SiSilicon14.7%HHydrogen0.3%EtimologiaNome derivato da hydroxyl.