|
USA | |
| Cook, L.P. (1974) Metamorphosed Carbonate Rocks of the Nashoba Formation, Eastern Massachusetts. Cambridge, Massachusetts: Harvard University PhD Dissertation, 454 pages. |
| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
| Cook, 1974: Met. Carbonate Rocks of the Nashoba Form. |
| P. Cristofono collection, 2013 |
| Cook, 1974 |
| P Cristofono collection, 2006 |
Marlborough Junction locality, Marlborough, Middlesex County, Massachusetts, USA