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USA | |
| Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. |
| Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. |
| Betts, John (n.d.) John Betts website listing. Weber, Marcelle H., Sullivan, Earle C. (1995) Connecticut Mineral Locality Index. Rocks & Minerals, 70 (6) 396-409 doi:10.1080/00357529.1995.11761569 |
| Chomiak, B. A. (1989): An integrated study of the structure and mineralization at Great Hill, Cobalt, Connecticut [M.S. thesis]: University of Connecticut, Storrs, Connecticut, 288 p. |
| Nekkhi Murtishi 2019 |
Lead Mine brook, Thomaston, Litchfield County, Connecticut, USA