Wheal Devonshire operated as a tin mine at the base of the St. Agnes granite mass. The shallow workings penetrated decomposing granite, which at the surface, was utilized as a clay work, providing candle clay to nearby mines. Even as late as 1908, South Crofty was purchasing clay from The St. Agnes Candle Clay Works.
1832 1833 ….1843
External Links
Publications (2)
- Collins, J.H. (1912); Observations of the West of England Mining Region; 753 pages
- Dines, Henry George (1956); BGS - Regional Memoirs - Metalliferous Mining Region of South West England Vol1, The; 567 pages
