Jahnsite Group from selected localities.
USA | |
| Rocks & Min., May 1999.; NIZAMOFF, J. W. (2004, November). Phosphate mineralogy and paragenesis of the Palermo# 2 pegmatite, North Groton, New Hampshire. In 2004 Denver Annual Meeting. |
Rocks & Min 80:252 |
Palermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA