Smithsonite from
USA | |
| Nora K. Foley, Robert A. Ayuso, Joseph D. Ayotte, Denise L. Montgomery, and Gilpin R. Robinson, Jr. (2006): Geological Assessment of Cores from the Great Bay National Wildlife Refuge, New Hampshire (USGS Scientific Investigations Report 2006-5203). |
| Miller, C. E. (1971) Rhode Island Minerals and Their Locations, University of Rhode Island, Kingston |