Base de minéraux et lithothérapieMinérauxHydroxylhedyphaneHydroxylhedyphaneCa2Pb3(AsO4)3(OH) IMA approvedCompositionComposizione (% in peso)PbAsOCaPbLead54.7%AsArsenic19.8%OOxygen18.3%CaCalcium7.1%HHydrogen0.1%