Graphite from selected localities.
USA | |
| Miller, 1971. RI Minerals & Their Locations |
| |
| Michael W. Kieron collection; Rocks & Minerals (1986): 61: 286-289 |
Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Min.: 17:51; 20:463-464. |
Valley Falls, Cumberland, Providence County, Rhode Island, USA