Note 88 — EXCURSION V.
Reading edition
Cobalt. Huel Sparnon Tin and Copper Mine in the Parish of Redruth, is the only mine in the county that ever produced any considerable quantity of Cobalt; one fragment raised from it weighed 1333 lbs.
Reading edition
Cobalt. Huel Sparnon Tin and Copper Mine in the Parish of Redruth, is the only mine in the county that ever produced any considerable quantity of Cobalt; one fragment raised from it weighed 1333 lbs.