Thomsonite Subgroup from
UK | |
| BMS Newsletter 14. British Micromount Society (June 1985) . |
| Hubbard, N., Enamy, H. (1993) Edingtonite from Squilver quarry, Shropshire, England. Mineralogical Magazine, 57 (387) 349-351 doi:10.1180/minmag.1993.057.387.18 |