Blue Quartz from
USA | |
| Palache, Charles (1950) Fayalite at Rockport, Massachusetts. American Mineralogist, 35 (9-10) 877-881 |
| P Cristofono collection, 2007 |
| P Cristofono collection 2010 |
USA | |
| Palache, Charles (1950) Fayalite at Rockport, Massachusetts. American Mineralogist, 35 (9-10) 877-881 |
| P Cristofono collection, 2007 |
| P Cristofono collection 2010 |
North Woburn, Woburn, Middlesex County, Massachusetts, USA