Manganese Oxides from Bulgaria
Bulgaria | |
| Kunov, A. & Mandova, E. (1997): Supergene minerals of the Obichnik Au-Ag deposit (Eastern Rhodopes). Spisanie na Bulgarskoto Geologichesko Druzhestvo 58, 19-24. (in Bulgarian) |
| Zidarov, N., Petrov, O., Tarassov, M., Damyanov, Z., Tarassova, E., Petkova, V., Kalvachev, Y., Zlatev, Z. (2009) Mn-rich norsethite from the Kremikovtsi ore deposit, Bulgaria. Neues Jahrbuch für Mineralogie, Abhandlungen: 186(3): 321-331. |