During the period spanning 1851 to 1859, Carvannel Mine extracted 2,500 tons of copper ore with a grade of 7.25%, along with 4.5 tons of pyrite.
1833-1835 1850-1861
Publications (1)
- Dines, Henry George (1956); BGS - Regional Memoirs - Metalliferous Mining Region of South West England Vol1, The; 567 pages








