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Le Burg Mine (Le Burc Mine), Alban - Le Fraysse area, Tarn, Occitanie, France

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Latitude & Longitude (WGS84): 43° 52' 23'' North , 2° 24' 20'' East
Latitude & Longitude (decimal): 43.87306,2.40556
Köppen climate type:Cfb : Temperate oceanic climate
Name(s) in local language(s):Mine du Burg (Mine du Burc), Région d'Alban et du Fraysse, Tarn, Midi-Pyrénées, France
Other/historical region names associated with this locality:Midi-Pyrénées


A large fluorite vein (1200m in long and 3m in width), hosted in ordovician black schists. As all fluorite deposits in Tarn, this one is mainly composed of blue fluorite with quartz and siderite. It is well known for its nice blue and/or yellow fluorite crystals on quartz.
The vein was mined during antiquity (for copper) but was only rediscovered in 1945 and operated (for fluorite) from 1954 until April 2006. During the operation up to 290m depth, 650,000 tons of fluorite were worked out. It was the last fluorite mine in France...


Mineral List


15 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 Macrostrat.org

Cambrian
485.4 - 541 Ma



ID: 3132511
platform deposit or turbidittic basin

Age: Cambrian (485.4 - 541 Ma)

Description: low grade metamorphic

Lithology: Major:{sandstone}, Minor{limestone,phyllite,quartzite}

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]

Neoproterozoic
541 - 1000 Ma



ID: 3188144
Neoproterozoic crystalline metamorphic rocks

Age: Neoproterozoic (541 - 1000 Ma)

Comments: Massif Central

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 Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page 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

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- GRITTI C, SOULIE M.. (1969): La Barytine du Burc et sa position par rapport à la Fluorine. Bulletin de la Société d’Histoire naturelle de Toulouse, 105, p. 227-233. [referring to other locality?]

Mineral and/or Locality  
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