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Urdini Lakes, Rila Mtn (Rila Planina), Bulgaria

Beryl
Urdini Lakes, Rila Mtn, Bulgaria

Photo: Marcus Vau
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).

NOTE: This locality is in a National Park and collecting is forbidden.

Mineral List

'Albite-Anorthite Series'
'Allanite'
'Apatite'
Beryl
var: Emerald
Bismuthinite
Calcite
Chalcopyrite
'Columbite'
Epidote
'Garnet'
Ilmenite
Magnetite
Muscovite
var: Fuchsite
Phlogopite
Pyrite
Quartz
Rutile
Zircon


20 entries listed. 13 valid minerals.

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References

I. Kostov, V. Breskovska, J. Mincheva-Stefanova, G. Kirov (1964): Minerals of Bulgaria. Sofia, Bulgaria, 540 pp. (in Bulgarian).

Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Emerald deposits and occurrences: A review. Ore Geology Reviews 34, 87-112.

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Updated Mineral Entry: SericiteFrom Van King, 22nd May 2013 18:57:41