Urdini lakes, Rila Mts, Bulgaria
(Урдини езера, Рила планина, България)
Emerald occurrence, associated with a desilicified pegmatite vein that follows the contact between biotite gneiss and talc schist. Emeralds are concentrated in plagioclase-rich parts of the pegmatite and in contacts with phlogopite-rich zones.
The occurrence is situated in the area of Urdini lakes in Rila Mts (mountain range in southwestern Bulgaria and the highest mountain range of Bulgaria and the Balkans, with its highest peak being Musala at 2,925 m).
References:
- Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Emerald deposits and occurrences: A review. Ore Geology Reviews 34, 87-112.
Mineral List:18 entries listed. 11 valid minerals.
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