|
UK | |
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| Starkey, R. E. (2012) The Herodsfoot Mine, Lanreath, Cornwall, England. Mineralogical Record 43:411-486. |
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| Rob Bowell, pers. comm. (Cardiff University analysis) |
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| Steve Rust collection |
Greystone Quarry, Lezant, Cornwall, England, UK