Emerald from Spruce Pine Mining District, North Carolina, USA
USA | |
| E.Ya.Kievlenko, Geology of gems, 2003, p. 77 |
| Pratt, Joseph Hyde (1933) Gems and gem minerals of North Carolina. American Mineralogist, 18 (4) 148-159 Rocks & Min.:60:92. |
USA | |
| E.Ya.Kievlenko, Geology of gems, 2003, p. 77 |
| Pratt, Joseph Hyde (1933) Gems and gem minerals of North Carolina. American Mineralogist, 18 (4) 148-159 Rocks & Min.:60:92. |
Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA