Almandine-Spessartine Series from Massachusetts, USA
USA | |
| P. Cristofono collection, 2013 |
| Moritz, Harold (n.d.) Personal Communication. |
| P. Cristofono collection, 2006 |
| P. Cristofono collection |
| P Cristofono collection |
USA | |
| P. Cristofono collection, 2013 |
| Moritz, Harold (n.d.) Personal Communication. |
| P. Cristofono collection, 2006 |
| P. Cristofono collection |
| P Cristofono collection |
Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA