Hercynite from Rhodope Mountains, Europe
Bulgaria | |
| [Picotite var. Chrompicotite] I. Kostov, V. Breskovska, J. Mincheva-Stefanova, G. Kirov (1964): Minerals of Bulgaria. Sofia, Bulgaria, 540 pp. (in Bulgarian). |
Greece | |
| [Picotite] Wang et al. (2017), The Origin of a new Pargasite-Schist Hosted Ruby Deposit from Paranesti, Northern Greece. The Canadian Mineralogist, Vol. 55, pp. 535-560. |