2O'Kelly, Michael J. "St Gobnet's House, Ballyvourney, Co. Cork." Journal of the Cork Historical and Archaeological Society 57 (1952): 18.
The author states that the many "furnace bottoms" found at the site are lumps of porous, slag-like material, much heavier than the ordinary glassy slag usually found. They form from the hot debris of smelting which falls into and fills the bottom of the furnace. The 57 complete examples from Ballyvourney varied in diameter from 31" to 7". The number from Ballyvourney by far exceeds those recorded from elsewhere.
The excavation revealed numerous post-holes from the primary occupations; the second occupation phase saw the construction of a large circular stone structure, today known as St. Gobnet's House, with a central post-hole likely supporting a thatch roof.
A glass bead found from the first occupation level is of a type identified with the Roman or Viking periods. None of these objects could be firmly date, since they all were types from the first millennium CE.
In 1750 what is now known as St. Gobnet's house was described as "a circle of stones about two feet high and about nine feet in diameter, which seems to be the foundation of one of the small round towers placed in churchyards."(Smith, Charles. The Ancient and Present State of the County of Cork. Containing a Natural, Civil, Ecclesiastical, Historical and Topographical Description Thereof. Dublin: Printed for the Author, 1750. 193.)