|
Italy | |
|
| Antofilli, Borgo, Palenzona, 1985. I nostri minerali. Geologia e mineralogia in Liguria. Edizioni Melita, La Spezia |
|
Slovakia | |
- Eastern Slovenské Rudohorie Mts
| Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k |
|
USA | |
|
| U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225. |
|
| NJ State Geol. Ann. Rpt(1900):186; Clark, 1993 - "Hey's Mineral Index", p488. |
|
| Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State |
|
| The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 87. |