Fayalite-Forsterite Series from
USA | |
| Castle, R.O., Hepburn, J.C., Kopera, J.P. (2005). Bedrock Geologic Map of the Reading Quadrangle, Massachusetts |
| P. Cristofono collection 2011 |
Morrill, 1960. New Hampshire Mines and Mineral Localities. | |
| P. Cristofono collection, 2014 |
| |
| Miller, C.E. (1972) Minerals of Rhode Island. Department of Geology, University of Rhode Island, 83 pages. |
Iron Mine Hill quarry, Cumberland, Providence County, Rhode Island, USA