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Bulgaria | |
| www.clmc.bas.bg/Annreps/ANNREP8/annrep8.htm. |
| [var. Opal-C] Dimowa, Louiza, Nadia Petrova, Yana Tzvetanova, Ognyan Petrov, and Iskra Piroeva. (2022) "Structural Features and Thermal Behavior of Ion-Exchanged Clinoptilolite from Beli Plast Deposit (Bulgaria)" Minerals 12, no. 12: 1576. https://doi.org/10.3390/min12121576 |
| www.clmc.bas.bg (2003) http://www.clmc.bas.bg/Annreps/ANNREP8/annrep8.htm |
| Marinova, I. (2008). Morphology of electrum from Khan Krum gold deposit, Krumovgrad goldfield, Eastern Rhodope Mountain, SE Bulgaria. Geologica Macedonica, 2, 111-120. Bonev, N. (2004): The Ada Tepe deposit: a sediment-hosted, detachment fault-controlled, low-sulfidation gold deposit in the Eastern Rhodopes, SE Bulgaria. Swiss Bulletin of Mineralogy and Petrology, 84, 2004, 59-78. Marchev, P. Singer, B. S. Jelev, D. Hasson, S. Moritz, R. |
| www.clmc.bas.bg (2003) http://www.clmc.bas.bg/Annreps/ANNREP8/annrep8.htm |
| Anton Ivanov field observation |
| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
| Encheva, S., Petrov, P., Chukanov, N., Pekov, I., Енчева, С., Петко, П., ... & Пеков, И. Dachiardite-K from the area of Austa village, Momchilgrad municipality, Eastern Rhodopes–a new mineral species of zeolite group Дакиардит-K от района на с. Ауста, община Момчилград, Източни Родопи–нов минерален вид от групата на зеолитите. |