Basis data mineral & terapi kristalMineralHydroxyledgrewiteHydroxyledgrewiteCa9(SiO4)4(OH)2Monoclino IMA approvedKomposisiComposizione (% in peso)CaOSiCaCalcium47.3%OOxygen37.7%SiSilicon14.7%HHydrogen0.3%EtimologiDinamai dari hydroxyl.