Sulphuricums Sulphuricums are part of the Sulphurs. Sulphuricums are sulphates, having oxygen in a formula of SO4. rom Related postsJacaranda caucanaOctober 30, 2020Boronia crenulataMarch 10, 2019FranciumsMarch 10, 2019 Previous postPhoronidaNext postCalici virus