Opal from Apuan Alps, Tuscany, Italy
Italy | |
| • Biagioni, C., Orlandi, P., & Bonini, M. (2008). Fornovolasco. Storia e minerali delle miniere di ferro presso Vergemoli (Alpi Apuane). Rivista Mineralogica Italiana, 4/2008, 230-252 |
| Bonaccorsi, E., Merlino, S., Orlandi, P. (2007) Zincalstibite, a new mineral, and cualstibite: Crystal chemical and structural relationships. American Mineralogist, 92 (1) 198-203 doi:10.2138/am.2007.2240 |
Fornaccia, Fornovolasco, Vergemoli, Lucca Province, Tuscany, Italy