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Baia Sprie (Felsöbánya), Maramureș Co., Romania

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Epithermal vein deposit.
Mined for Ag and other metals from the 14th century until 2006.

The hydrothermal vein system consists of two major veins along fractures that delimitate an andesitic block and a subvolcanic intrusion:
- the Principal Vein
The Principal Vein represents one of the longest hydrothermal veins in Europe, with a length of more than 5 km, a thickness between 0.5 and 22 m and a vertical extension of more than 800 m.

Apparently, six shafts (mines) were operative.

Mineral List

Mineral list contains entries from the region specified including sub-localities


121 entries listed. 82 valid minerals. 5 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc.

Localities in this Region


The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

- Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1015.
- Borcos, M., Lang, B., Bostinescu, S. & Gheorghita, I. (1975): Neogene hydrothermal ore deposits in the volcanic Gutii Mountains. III. Dealul Crucii-Baiut district. A. Herja, Baia Sprie and Suior ore deposits. Revue Roumaine de Geologie, Geophysique et Geographie: Geologie, 19, 21-35.
- Huber, P. & Muresan, I. (1996): Mineralienübersicht der wichtigsten Bergbaue des Bezirkes Maramures. Lapis, 21 (7), 60. (in German).
- Buzatu, A., Damian, G., Dill, H. G., Buzgar, N. & Apopei A. I. (2015): Mineralogy and geochemistry of sulfosalts from Baia Sprie ore deposit (Romania) — New bismuth minerals occurrence. Ore Geology Reviews 65, 132-147.

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