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Marble quarry (Bürgergilt quarry; Bürgergilde quarry), Olsa, Friesach, Friesach - Hüttenberg area, Carinthia, Austria

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Latitude & Longitude (WGS84): 46° 57' 16'' North , 14° 25' 5'' East
Latitude & Longitude (decimal): 46.95469,14.41827
Other regions containing this locality:The Alps, Europe
Köppen climate type:Dfb : Warm-summer humid continental climate
Name(s) in local language(s):Marmorbruch (Bürgergiltsteinbruch; Bürgergildensteinbruch; Steinbruch der Bürgergilde), Olsa, Friesach, Region Friesach - Hüttenberg, Kärnten, Österreich

Abandoned quarry in marble lens with variegated mineralisations.
Well known are large calcite crystals from an unique find, fluorite, boulangerite, "korynite" in a siderite vein and ranciéite.

Note: The mineral list is not only exclusively from the quarry, but also from the mines at Gaisberg and Minachberg.

Mineral List

47 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

Paleozoic - Proterozoic
252.17 - 2500 Ma

ID: 3156468
Ostalpines Kristallin

Age: to Permian (252.17 - 2500 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{mica schist}, Minor{marble,amphibolite}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

358.9 - 419.2 Ma

ID: 3185991
Paleozoic crystalline metamorphic rocks

Age: Devonian (358.9 - 419.2 Ma)

Comments: Alps

Lithology: Crystalline metamorphic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on 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 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.


Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Friedrich, O.M. (1949) Der Karinthin 6: 102-105.
Meixner, H. (1957) Der Karinthin 36: 242-248.
Meixner, H. (1964) Carinthia II 154./74.: 10-11.
Meixner, H. (1967) Carinthia II 157./77.: 2-93.
Meixner, H. (1968) Carinthia II 158./78.: 101-102.
Begutter, P., Kugler, F., and Pertlik, F. (1980) Der Karinthin 82: 163-165.
Stroh, R. (1983) Die Eisenblüte 4(7): 20-22.
Niedermayr, G. and I. Praetzel (1995) Mineralien Kärntens.
Ertl, A., Pertlik, F., Prem, M., Post, J.E., Kim, S.J., Brandstätter, F., and Schuster, R. (2005) Ranciéite crystals from Friesach, Carinthia, Austria. European Journal of Mineralogy, 17, 163-172.

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