Metatorbernite from Pennsylvania, USA
USA | |
| Geyer, A.R., Smith, R.C. & Barnes, J.H. (1976) Mineral Collecting in Pennsylvania. |
| Geyer, A.R., Smith, R.C. & Barnes, J.H. (1976) Mineral Collecting in Pennsylvania. |
| Smith and Hioff (1984) |
| Samuel G. Gordon (1922) "Mineralogy of Pennsylvania" p. 225. |
Samuel G. Gordon (1922) "Mineralogy of Pennsylvania" p. 225. | |
Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
Comley's Quarry, Germantown, Philadelphia, Philadelphia County, Pennsylvania, USA