Rila, Rhodope Mts, Plovdiv Oblast, Bulgaria

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.

Ref.:
- 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:

	'Albite-Anorthite Series'

	'Allanite'

	'Apatite'

	Beryl

	var: Emerald

	Calcite

	Chalcopyrite

	'Columbite'

	Epidote

	'Garnet Group'

	Magnetite

	Muscovite

	Muscovite var: Fuchsite

	Phlogopite

	Pyrite

	Quartz

	Rutile

	Zircon

18 entries listed. 11 valid minerals.

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