Biotite from selected localities.
USA | |
| Januzzi, 1976. Mineral Localities of CT and Southeastern NY State |
J. Zolan Field Observation | |
| Ryerson, Kathleen H. (1972) Rockhouns Guide to Connecticut |
USA | |
| Januzzi, 1976. Mineral Localities of CT and Southeastern NY State |
J. Zolan Field Observation | |
| Ryerson, Kathleen H. (1972) Rockhouns Guide to Connecticut |