Glauconite from selected localities.
UK | |
| Quirk, D.G. (1986): Bulletin of the Peak District Mines Historical Society 9(6), 333-386; Ford, T.D., Sarjeant, W.A.S., and Smith, M.E. (1993): UK Journal of Mines and Minerals 13, 16-55 |
Quirk, D.G. (1986): Bulletin of the Peak District Mines Historical Society 9(6), 333-386 |