A modern operation worked for roadstone, Greystone Quarry is situated on the strike of a lode system worked by several small 19th C lead mines(Greystone silver lead mine, Wh Sophia, North Tamar). The quarry cuts the eastern end of the vein system worked by the latter mine.
- Elton, N., Green, D., Hooper, J. & Weiss, S. (2004). Famous British Mineral Localities: Greystone Quarry, Lezant, Cornwall. UK Journal of Mines & Minerals, No. 24, 2004, 9-28.
- De Nul, R. (2005). "The first Cornish occurrence of elyite at Greystone Quarry, Lezant (England)." UK Journal of Mines and Minerals(25), 35-36.
- Weiss, S. et al. (2001). Lapis 26(4), 19-33.