Amethyst from selected localities.
Greece | |
| Michael, C. (2004). Epithermal systems and gold mineralization in western Thrace (North Greece). Bull Geol Soc Greece, 36, 416-423. |
Ortelli, M., Moritz, R., Voudouris, P., & Spangenberg, J. (2009). Tertiary porphyry and epithermal association of the Sapes-Kassiteres district, Eastern Rhodopes, Greece. Smart Science for Exploration and Mining, 536-538. |