Oireachtas Joint and Select Committees
Tuesday, 6 December 2022
Joint Oireachtas Committee on Housing, Planning and Local Government
Issues Relating to Quarries and Deleterious Materials: Discussion
Steven Matthews (Wicklow, Green Party) | Oireachtas source
All right. I lack the knowledge on this. Sulphates include the likes of pyrite and pyrrhotite. They are classified as sulphurous materials.
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